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insoluble

insoluble

insoluble Sentence Examples

  • The insoluble salts are rose-red or violet in colour.

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  • It is insoluble in water, while its salts are readily soluble.

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  • Arsenic is insoluble in the acid, but immediately dissolves in the bleaching-powder.

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  • Certain substances, such as the precious metals, are quite insoluble in the bead, but float about in it.

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  • Certain substances are insoluble in all these reagents, and other methods, such as the fusion with sodium carbonate and potassium nitrate, and subsequent treatment with an acid, must be employed.

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  • It is almost insoluble in water, but mixes in all proportions with absolute alcohol, ether, benzene and various oils.

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  • In a scientific definition the compounds of fatty acids with basic metallic oxides, lime, magnesia, lead oxide, &c., should also be included under soap; but, as these compounds are insoluble in water, while the very essence of a soap in its industrial relations is solubility, it is better to speak of the insoluble compounds as " plasters, " limiting the name " soap " as the compounds of fatty acids with soda and potash.

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  • It was too dreadful to be under the burden of these insoluble problems, so he abandoned himself to any distraction in order to forget them.

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  • Fusion with caustic potash converts it into a mixture of potassium ruthenate and ruthenium sesquioxide, Ru 2 0 3, which is a black, almost insoluble powder.

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  • The nucleo-albumins or phospho-globulins are insoluble in water and acids, but soluble in alkalies, and have an acid reaction.

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  • The nucleo-albumins or phospho-globulins are insoluble in water and acids, but soluble in alkalies, and have an acid reaction.

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  • manures), manufactured or imported, to state the percentage of the nitrogen, of the soluble and insoluble phosphates, and of the potash in each article sold, and this statement was to have the effect of a warranty.

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  • It is readily soluble in water and alcohol, but insoluble in ether.

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  • Those contained in the British Pharmacopoeia are the following: (1) Sulphur sublimatum, flowers of sulphur (U.S.P.), which is insoluble in water.

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  • Those contained in the British Pharmacopoeia are the following: (1) Sulphur sublimatum, flowers of sulphur (U.S.P.), which is insoluble in water.

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  • She was tormented by the insoluble question whether she loved Anatole or Prince Andrew.

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  • The insoluble residue contains a mixture of two sulphides, one of which is converted into the sulphate by nitric acid, whilst the other (a crystalline solid) is insoluble in acids.

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  • But if there be no tendency to form an insoluble compound, or one which is not liable to react upon any of the other substances present, this is no longer the case.

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  • It is an indigo-blue powder, soluble in hydrochloric acid, but insoluble in dilute nitric and sulphuric acids.

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  • They are quite insoluble in water and in salt solutions, and difficultly soluble in dilute acids and alkalies.

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  • It is quite insoluble in water, dilute acids and alkalies.

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  • They are quite insoluble in water and in salt solutions, and difficultly soluble in dilute acids and alkalies.

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  • The residue on the filter paper gives (3) the substances insoluble in water.

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  • They are usually insoluble in water, alcohol and ether; and their presence as solutes in vegetable and animal fluids is not yet perfectly understood, but it is probably to be connected with the presence of salts or other substances.

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  • insoluble in pure water, but soluble in salt solutions; " edestin," a globulin of this class, is very widely distributed.

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  • They are usually insoluble in water, alcohol and ether; and their presence as solutes in vegetable and animal fluids is not yet perfectly understood, but it is probably to be connected with the presence of salts or other substances.

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  • If barium is present, the solution of the carbonates in hydrochloric acid is evaporated and digested with strong alcohol for some time; barium chloride, which is nearly insoluble in alcohol,is thus separated, the remainder being precipitated by a few drops of hydrofluosilicic acid, and may be confirmed by the ordinary tests.

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  • It is a reddish-yellow crystalline solid, insoluble in water and melting at 178° C. It explodes readily when melted or subjected to shock.

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  • Either common salt or strong brine in measured quantity is added to the charge, and, the soap being insoluble in such salt solution, a separation of constituents takes place: the soap collects on the surface in an open granular condition, and the spent lye sinks to the bottom after it has been left for a short time to settle.

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  • It is a brownish amorphous solid, which is insoluble in water.

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  • After the vigorous reaction has ceased and all the sodium has been used up, the mass is thrown into dilute hydrochloric acid, when the soluble sodium salts go into solution, and the insoluble boron remains as a brown powder, which may by filtered off and dried.

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  • It is insoluble in water, but gradually decomposes, forming a hydrated oxide, Ru 2 0 5 H 2 O.

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  • Some of these insoluble compounds can be detected by their colour and particular reactions.

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  • When boiled with calcium chloride and ammonia, salicylic acid gives a precipitate of insoluble basic calcium salicylate, C 6 H 4 ‹ 0 2 i Ca, a reaction which serves to distinguish it from the isomeric metaand para-hydroxybenzoic acids.

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  • The calcium salt, CaN 2 O 2.4H 2 O, formed by the action of calcium chloride on the silver salt in the presence of a small quantity of nitric acid, is a lustrous crystalline powder, almost insoluble in water but readily soluble in dilute acids.

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  • It is insoluble in dilute acids, but is readily soluble in excess of potassium cyanide.

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  • Ferric hydrate, iron soaps and all insoluble impurities are precipitated.

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  • It crystallizes in colourless plates melting at 20°C. and boiling at 202°C.; it is insoluble in water, but readily dissolves in the ordinary organic solvents.

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  • Fibrinogen is insoluble in water, but soluble in salt solutions; it has three different coagulation temperatures, 56°, 6 7°, 75°.

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  • The cobaltous salts are formed when the metal, cobaltous oxide, hydroxide or carbonate, are dissolved in acids, or, in the case of the insoluble salts, by precipitation.

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  • There are certainly at least two resins in the powder (which is known officially as Podophylli resina), one of them being soluble and the other insoluble in ether.

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  • Marine Soap. - These soaps are so named because they are not insoluble in a strong solution of salt; hence they form a lather and can be used for washing with sea-water.

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  • The most important points in soap analysis are (1) determination of the fatty matter, (2) of the total alkali, (3) of the substances insoluble in water, (4) of the water.

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  • This is also the case if two substances are brought together in solution, by the action of which upon each other a third body is formed which is insoluble in the solvent employed, and which also does not tend to react upon any of the substances present; for instance, when a solution of a chloride is added to a solution of a silver salt, insoluble silver chloride is precipitated, and almost the whole of the silver is removed from solution, even if the amount of the chloride employed be not in excess of that theoretically required.

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  • In quantitative analysis the methods can be subdivided into: (a) gravimetric, in which the constituent is precipitated either as a definite insoluble compound by the addition of certain reagents, or electrolytically, by the passage of an electric current; (b) volumetric, in which the volume of a reagent of a known strength which produces a certain definite reaction is measured; (c) colorimetric, in which the solution has a particular tint, which can be compared with solutions of known strengths.

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  • The globulins are insoluble in water and in dilute acids, but soluble in alkalies and in neutral salt solutions; these solutions are coagulated on boiling.

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  • In quantitative analysis the methods can be subdivided into: (a) gravimetric, in which the constituent is precipitated either as a definite insoluble compound by the addition of certain reagents, or electrolytically, by the passage of an electric current; (b) volumetric, in which the volume of a reagent of a known strength which produces a certain definite reaction is measured; (c) colorimetric, in which the solution has a particular tint, which can be compared with solutions of known strengths.

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  • I see how human ingenuity and new technologies have eliminated previously insoluble problems once we stand back and let free markets do what they do best: direct the allocation of capital to find a solution.

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  • It forms red crusts, is insoluble in cold water, but is decomposed by boiling water.

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  • The neutral alkaline salts are soluble in water and show an alkaline reaction, the other neutral salts being either insoluble or difficultly soluble in water.

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  • Biot - who loved and admired him as a son - publicly announced that his enterprise was chimerical and the problem insoluble; Dumas evidently thought so too, for he advised Pasteur not to spend more of his time on such a subject.

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  • By the rennet ferment caseinogen is converted into casein, a substance resembling caseinogen in being soluble in water, but differing in having an insoluble calcium salt.

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  • He sees insoluble contradictions in every mode of conceiving God as real, yet he advocates religious belief, though the object of that belief have but an abstract or imaginary existence.

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  • The salts of all the metals of this group usually crystallize well, the chlorides and nitrates dissolve readily in water, whilst the carbonates, phosphates and sulphates are either very sparingly soluble or are insoluble in water.

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  • If the acid has been swallowed, wash out the stomach and give chalk, the carbolate of calcium being insoluble.

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  • Amorphous sulphur or Sy exists in two forms, one soluble in carbon bisulphide, the other insoluble.

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  • The solid derived from SA is crystalline and soluble in carbon bisulphide, that from S, is amorphous and insoluble.

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  • With our present knowledge the problem of the original form of sacrifice, if there be a single primary form, is insoluble.

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  • The citrates are a numerous class of salts, the most soluble of which are those of the alkaline metals; the citrates of the alkaline earth metals are insoluble.

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  • It encountered many difficulties, and until the definite proof of the stegomyia hypothesis of yellowfever inoculation made by the United States army surgeons in Cuba in 1900, the greatest problem seemed insoluble.

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  • Fibroin is insoluble in water, acids and alkalies; silk-glue resembles gelatin in its solubility, but it is less readily gelatinized.

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  • " Spongin," the matrix of bath-sponge, is insoluble in water and dilute acids, but soluble in concentrated mineral acids.

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  • It forms shiny, homogeneous masses, quite insoluble in cold water and in salt solutions, but soluble in alkalies.

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  • Melanins obtained from tumours form black, shiny masses; they are insoluble in water, neutral salt solutions, dilute acids and in the common organic solvents.

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  • Another method is to allow an acid to act on an insoluble salt, and to measure the quantity which goes into solution.

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  • Silver chloride is a very insoluble substance, and here the amount in solution is still further reduced by the presence of excess of chlorine ions of the potassium salt.

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  • Paramide is a white amorphous powder, insoluble in water and alcohol.

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  • It is produced by the addition of a solution of lead salt to an excess of ammonium carbonate, as an almost insoluble white precipitate.

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  • Lead sulphate, PbSO 4, occurs in nature as the mineral anglesite (q.v.), and may be prepared by the addition of sulphuric acid to solutions of lead salts, as a white precipitate almost insoluble in water (1 in 21,739), less soluble still in dilute sulphuric acid (1 in 36,504) and insoluble in alcohol.

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  • Lead nitrate, Pb(N03)2, is obtained by dissolving the metal or oxide in aqueous nitric acid; it forms white crystals, difficultly soluble in cold water, readily in hot water and almost insoluble in strong nitric acid.

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  • But the most delicate precipitant for lead is sulphuretted hydrogen, which produces a black precipitate of lead sulphide, insoluble in cold dilute nitric acid, less so in cold hydrochloric, and easily decomposed by hot hydrochloric acid with formation of the characteristic chloride.

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  • (3) Plumbi Carbonas, white lead, a mixture of the carbonate and the hydrate, a heavy white powder insoluble in water; it is not used internally, but from it is made Unguentum Plumbi Carbonatis, strength 1 in so parts of paraffin ointment.

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  • As a rule the soluble salts if taken in sufficient quantities produce acute poisoning, and the insoluble salts chronic plumbism.

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  • The treatment is the prompt use of emetics, or the stomach should be washed out, and large doses of sodium or magnesium sulphate given in order to form an insoluble sulphate.

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  • Schultz, Ann., 1879, 196, p. 35); or the two hydrocarbons may be separated by carbon bisulphide, in which anthracene is insoluble.

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  • It is a crystalline solid, which sublimes at 112°-115° C. It is insoluble in water, and is only slightly soluble in alcohol and ether.

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  • The mother liquor includes generally more or less of nickel, cobalt, zinc and other heavy metals, which, as Wailer showed, can be removed as insoluble sulphides by the addition of ammonium sulphide; uranium, under the circumstances, is not precipitated by this reagent.

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  • O, is obtained by heating uranyl nitrate to 250° as a yellow solid, insoluble in water, but soluble in acids with the formation of uranyl salts.

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  • These salts generally resemble the bichromates; they are yellow in colour, insoluble in water, soluble in acids, and decomposed by heat.

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  • It is almost insoluble in water, but readily soluble in alcohol and ether.

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  • (I) Commercially pure tin is treated with nitric acid, which converts the tin proper into the insoluble metastannic acid, while the copper, iron, &c., become nitrates; the metastannic acid is washed first with dilute nitric acid, then with water, and is lastly dried and reduced by fusion with black flux or potassium cyanide.

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  • It is insoluble in water and in nitric acid and apparently so in hydrochloric acid; but if heated with this last for some time it passes into a compound, which, after the acid mother liquor has been decanted off, dissolves in water.

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  • Stannous salt solutions yield a brown precipitate of SnS with sulphuretted hydrogen, which is insoluble in cold dilute acids and in real sulphide of ammonium, (NH 4) 2 S; but the yellow, or the colourless reagent on addition of sulphur, dissolves the precipitate as SnS 2 salt.

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  • Stannic salt solutions give a yellow precipitate of SnS 2 with sulphuretted hydrogen, which is insoluble in cold dilute acids but readily soluble in sulphide of ammonium, and is re-precipitated therefrom as SnS2 on acidification.

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  • This particular product was insoluble in a mixture of ether and alcohol, and its composition could be expressed by the term tri-nitrocellulose.

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  • The constitution of guncotton is a difficult matter to investigate, primarily on account of the very insoluble nature of cellulose itself, and also from the fact that comparatively slight variations in the concentration and temperature of the acids used produce considerable differences in the products.

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  • The nitrates are also very insoluble substances, all the so-called solvents merely converting them into jelly.

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  • The nitrate of this base (known as nitron) is so insoluble that nitrates may be gravimetrically estimated with its help. These bases combine with the alkyl iodides to yield quaternary ammonium salts.

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  • form an insoluble calcium soap. The interaction between the soaps, the phosphates and the carbonates which are brought by the blood and lymph to the part results in the weaker fatty acids being replaced by phosphoric and carbonic acid, and thus in the formation of highly insoluble calcium phosphate and carbonate deposits in the disorganized tissues.

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  • It is almost insoluble in water.

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  • All carbonates, except those of the alkali metals and of thallium, are insoluble in water; and the majority decompose when heated strongly, carbon dioxide being liberated and a residue of an oxide of the metal left.

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  • Many carbonates which are insoluble in water dissolve in water containing carbon dioxide.

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  • Tin and antimony (also arsenic) are converted by it (ultimately) into hydrates of their highest oxides Sn0 2, Sb205 (As 2 O 5) - the oxides of tin and antimony being insoluble in water and in the acid itself.

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  • The following are the most important exceptions: silver chloride, AgC1, and mercurous chloride, HgCI, are absolutely insoluble; lead chloride, PbC1 2, and cuprous chloride, CuCI, are very sparingly soluble in water.

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  • - Fischer found that if one molecule of phenylhydrazine acted upon one molecule of an aldose or ketose a hydrazone resulted which in most cases was very soluble in water, but if three molecules of the hydrazine reacted (one of which is reduced to ammonia and aniline) insoluble crystalline substances resulted, termed osazones, which readily characterized the sugar from which it was obtained.

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  • The oxygen of the air may also bring about chemical changes which result in the production of soluble substances removable by rain, the insoluble parts being left in a loosened state.

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  • It contains from 48 to 75% of sodium nitrate and from 20 to 40% of common salt, which are associated with various minor saline components, including sodium iodate and more or less insoluble mineral, and also some organic matter, e.g.

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  • By heating the nitrate it is obtained as hemimorphous pyramids belonging to the hexagonal system; and by heating the chloride in a current of steam as hexagonal prisms. It is insoluble in water; it dissolves readily in all aqueous acids, with formation of salts.

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  • It is a white powder, and is insoluble in water.

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  • It dissolves in mineral acids, but is insoluble in acetic acid.

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  • - From neutral solutions of its salts zinc is precipitated by sulphuretted hydrogen as sulphide, ZnS - a white precipitate, soluble, but by no means readily, in dilute mineral acids, but insoluble in acetic acid.

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  • But in practice the results were not wholly satisfactory, and it was a long time before he recognized one important reason for the failure in the fact that to prevent the alkalis from being washed away by the rain he had taken pains to add them in an insoluble form, whereas, as was ultimately suggested to him by experiments performed by J.

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  • It melts at 213° C. and boils at 351° C. It is insoluble in water, sparingly soluble in alcohol and ether, but readily soluble in hot benzene.

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  • aquifolium, Hydrastis canadensis, &c. It is a yellow, crystalline solid, insoluble in ether and chloroform, soluble in 41 parts of water at 21°, and moderately soluble in alcohol.

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  • It is a monacid base; the hydrochloride, C 20 H 17 N0 4 HC1, is insoluble in cold alcohol, ether and chloroform, and soluble in 500 parts of water; the acid sulphate, C 20 H 17 N0 4 H 2 SO 4, dissolves in about loo parts of water.

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  • It is insoluble in ether, and is more active than jalapin.

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  • It is insoluble in all acids, except in hot concentrated sulphuric, when finely powdered.

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  • This salt is decomposed by water with the formation of a solution of alkali free of titanium, and a residue of an acid titanate, which is insoluble in water but soluble in cold 'aqueous mineral acids.

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  • The next higher members of the series are liquids of low boiling point also readily soluble in water, the solubility and volatility, however, decreasing with the increasing carbon content of the molecule, until the highest members of the series are odourless solids of high boiling point and are insoluble in water.

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  • The aqueous solution of the amines is now shaken up with diethyl oxalate, when the primary amine forms a crystalline dialkyl oxamide and the secondary amine an insoluble liquid, which is an ethyl dialkyl oxamate, the tertiary amine not reacting: (C02C2H5)2+ 2NH 2 R = (CO�NHR) 2 -{- 2C 2 H S OH; (CO 2 C 2 H 5) 2 -}- NHR 2 = C 2 H S O 2 C�Conr 2 -1-C 2 H S Oh.

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  • With benzene sulphochloride in the presence of alkali, the primary amines yield compounds of the type C 6 H 5 S0 2 NHR, soluble in alkalies, whilst the secondary amines yield compounds of the type C 6 H 5 S0 2 NR 2, insoluble in alkalies (0.

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  • The primary amines are colourless liquids or crystalline solids, which are insoluble in water, but readily soluble in the common organic solvents.

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  • It crystallizes in white plates, which melt at 45° C. and boil at 302° C. It is almost insoluble in water, but readily volatilizes in steam.

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  • It is a colourless, amorphous solid, which is almost insoluble in water, its solubility diminishing with increasing temperature; it is appreciably soluble in concentrated sulphuric acid.

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  • It is an amorphous solid, insoluble in water, but its solubility is increased in the presence of ammonium nitrate.

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  • Strontium salts may be recognized by the characteristic crimson colour they impart to the flame of the Bunsen burner and by the precipitation of the insoluble sulphate.

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  • This work is divided into two parts; the first intended to show that while ultimate metaphysical questions are insoluble they compel to a recognition of an inscrutable Power behind phenomena which is called the Unknowable; the second devoted to the formulation and illustration of the Law of Evolution.

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  • On passing a current of electricity, of which the volume and pressure are adjusted to the conditions of the electrolyte and electrodes, the anode slowly dissolves, leaving the insoluble impurities in the form of a sponge, if the proportion be considerable, but otherwise as a mud or slime which becomes detached from the anode surface and must be prevented from coming into contact with the cathode.

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  • If the latter be insoluble, the gas diffuses into the solution and, when this becomes saturated, escapes into the air.

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  • Rotating zinc cathodes were used, with scrapers to prevent the accumulation of a layer of insoluble magnesium compounds, which would otherwise increase the electrical resistance beyond reasonable limits.

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  • In others the current is applied for a longer time to the original sugar-solution with insoluble (e.g.

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  • In this process cellulose (in the form of sawdust) is made into a stiff paste with a mixture of strong caustic potash and soda solution and heated in flat iron pans to 20o-250 C. The somewhat dark-coloured mass is lixiviated with a small amount of warm water in order to remove excess of alkali, the residual alkaline oxalates converted into insoluble calcium oxalate by boiling with milk of lime, the lime salt separated, and decomposed by means of sulphuric acid.

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  • It is a white crystalline powder which is almost insoluble in cold water.

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  • The alloy is then insoluble in " aqua regia."

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  • The metals have therefore passed into an insoluble form by a comparatively slight elevation of temperature.

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  • It is insoluble in hydrochloric, nitric and sulphuric acids, but dissolves in aqua regia - a mixture of hydrochloric and nitric acids - and when very finely divided in a heated mixture of strong sulphuric acid and a little nitric acid; dilution with water, however, precipitates the metal as a violet or brown powder from this solution.

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  • When freshly prepared it dissolves in cold water to form an indigocoloured solution with a brownish fluorescence of colloidal aurous oxide; it is insoluble in hot water.

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  • Aurous chloride, AuCl, is obtained as a lemon-yellow, amorphous powder, insoluble in water, by heating auric chloride to 185°.

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  • Aurous cyanide, AuCN, forms yellow, microscopic, hexagonal tables, insoluble in water, and is obtained by the addition of hydrochloric acid to a solution of potassium aurocyanide, KAu(CN)2.

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  • Generally the reaction mixture is allowed to cool, and the residue, which settles to the bottom of the pot, consists of gold together with copper, lead and iron sulphates, which are insoluble in strong sulphuric acid; silver sulphate may also separate if present in sufficient quantity and the solution be sufficiently cooled.

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  • Or the alloy is dissolved in aqua regia, the solution filtered from the insoluble silver chloride, and the gold precipitated by ferrous chloride.

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  • In this process all the anode metals pass into solution except iridium and other refractory metals of that group, which remain as metals, and silver, which is converted into insoluble chloride; lead and bismuth form chloride and oxychloride respectively, and these dissolve until the bath is saturated with them, and then precipitate with the silver in the tank.

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  • Its history has been the subject of much controversy for years past, but no longer presents an insoluble problem.

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  • The blackish brown sulphide precipitated from bismuth salts by sulphuretted hydrogen is insoluble in ammonium sulphide, but is readily dissolved by nitric acid.

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  • The specific gravity bottle may be used to determine the relative density of a solid which is available in small fragments, and is insoluble in the standard liquid.

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  • The element is insoluble in water, but dissolves in concentrated sulphuric acid forming a deep red solution.

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  • It crystallizes in prisms, which lose their water of crystallization at 160° C. The tellurates of the alkali metals are more or less soluble in water, those of the other metals being very sparingly or almost insoluble in water.

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  • Some tellurates exist in two forms, a colourless form soluble in water and acids, and a yellow form insoluble in water and acids.

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  • It is insoluble in all acids.

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  • The normal salts are all insoluble in water; the complex acid, hexatantalic acid, H $ Ta 6 0, 9 (which does not exist in the free state), forms soluble salts with the alkaline metals.

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  • It crystallizes in short hard prisms, which are readily soluble in water but insoluble in alcohol.

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  • Even in the practical sphere, however, Fichte found that the contradiction, insoluble to cognition, was not completely suppressed, and he was thus driven to the higher view, which is explicitly stated in the later writings though not, it must be confessed, with the precision and scientific clearness of the Wissenschaftslehre.

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  • Mucilages are useful in medicine as vehicles for various insoluble and other drugs, and in the arts as thickeners (in calico-printing, dyeing, &c.).

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  • In the massive state it is insoluble in all acids, but when freshly precipitated from solutions it dissolves in fuming nitric acid.

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  • The protoxide, OsO, is obtained as a dark grey insoluble powder when osmium sulphite is heated with sodium carbonate in a current of carbon dioxide.

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  • It is insoluble in acids and exists in several hydrated forms. The osmiates, corresponding to the unknown trioxide 0503, are red or green coloured salts; the solutions are only stable in the presence of excess of caustic alkali; on boiling an aqueous solution of the potassium salt it decomposes readily, forming a black precipitate of osmic acid, H20s04.

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  • It crystallizes in dark red octahedra which are almost insoluble in cold water.

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  • Osmium disulphide, OsS2, is obtained as a dark brown precipitate, insoluble in water, by passing sulphuretted hydrogen into a solution of an osmichloride.

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  • It is a brownish black solid, insoluble in solutions of the alkaline sulphides.

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  • Other precipitants of phosphoric acid or its salts in solution are: ammonium molybdate in nitric acid, which gives on heating a canary-yellow precipitate of ammonium phosphomolybdate, 12[M00 3] (NH 4) 3 PO 4, insoluble in acids but readily soluble in ammonia; magnesium chloride, ammonium chloride and ammonia, which give on standing in a warm place a white crystalline precipitate of magnesium ammonium phosphate, Mg(NH 4)PO 4.6H 2 0, which is soluble in acids but highly insoluble in ammonia solutions, and on heating to redness gives magnesium pyrophosphate, Mg 2 P 2 0 7; uranic nitrate and ferric chloride, which give a yellowish-white precipitate, soluble in hydrochloric acid and ammonia, but insoluble in acetic acid; mercurous nitrate which gives a white precipitate, soluble in nitric acid, and bismuth nitrate which gives a white precipitate, insoluble in nitric acid.

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  • Where guano-beds are exposed to rain their soluble constituents are removed and the insoluble matters left behind.

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  • However, no proper geometrical solution, in Plato's sense, was obtained; in fact it is now generally agreed that, with such a restriction, the problem is insoluble.

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  • Whereas calcium chloride, bromide, and iodide are deliquescent solids, the fluoride is practically insoluble in water; this is a parallelism to the soluble silver fluoride, and the insoluble chloride, bromide and iodide.

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  • Calcium fluoride, CaF2, constitutes the mineral fluor-spar, and is prepared artificially as an insoluble white powder by precipitating a solution of calcium chloride with a soluble fluoride.

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  • Calcium carbonate is obtained as a white precipitate, almost insoluble in water (1 part requiring Io,000 of water for soluticn), by mixing solutions of a carbonate and a calcium salt.

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  • It is insoluble in water; slightly soluble in solutions of carbonic acid and common salt, and readily soluble in concentrated hydrochloric and nitric acid.

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  • Sulphuric acid gives a white precipitate of calcium sulphate with strong solutions; ammonium oxalate gives calcium oxalate, practically insoluble in water and dilute acetic acid, but readily soluble in nitric or hydrochloric acid.

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  • It is soluble in dilute aqueous alcohol, but insoluble in strong alcohol.

    0
    0
  • The fluorides of the alkali metals, of silver, and of most of the heavy metals are soluble in water; those of the alkaline earths are insoluble.

    0
    0
  • Its origin, its territory, its institutions are so many insoluble riddles.

    0
    0
  • In their phy s ical properties, the olefines resemble the normal paraffins, the lower members of the series being inflammable gases, the members from C5 to C14 liquids insoluble in water, and from C16 upwards of solids.

    0
    0
  • This product, known as "crude potashes," contains, in addition to carbonate, varying amounts of sulphate and chloride and also insoluble matter.

    0
    0
  • The carbonate, being insoluble in strong alcohol (and many other liquid organic compounds), is much used for dehydration of the corresponding aqueous preparations.

    0
    0
  • The salt is soluble in water, but insoluble in caustic potash of sp. gr.

    0
    0
  • The chief insoluble salts are the perchlorate, acid-tartrate and platinochloride.

    0
    0
  • It melts readily over the fire, and softens even with the heat of the mouth; it is insoluble in water, and nearly so in cold alcohol.

    0
    0
  • Silver iodide, mercurous iodide, and mercuric iodide are insoluble in water; lead iodide is sparingly soluble, whilst most of the other metallic iodides are soluble.

    0
    0
  • The soluble iodides, on the addition of silver nitrate to their nitric acid solution, give a yellow precipitate of silver iodide, which is insoluble in ammonia solution.

    0
    0
  • They are mostly insoluble or only very slightly soluble in water.

    0
    0
  • The essential part of the medicinal treatment of this condition is the administration of iodides, which are able to decompose the insoluble albuminates of lead which have become locked up in the tissues, rapidly causing their degeneration, and to cause the excretion of the poisonous metal by means of the intestine and the kidneys.

    0
    0
  • and is readily soluble in water, but the solution is unstable and decomposes on standing, giving amorphous insoluble substances, and ammonium formate, oxalic acid, &c. An aqueous solution of hydrogen peroxide converts it into oxamide, (CONH 2) 2, and reduction by zinc and hydrochloric acid gives methylamine.

    0
    0
  • Those of the heavy metals are mostly insoluble in water, but are soluble in a solution of potassium cyanide, forming more or less stable double salts, for example KAg(NC)2, KAu(NC) 2.

    0
    0
  • Lead cyanide, Pb(NC) 2, however, does not form such a salt, and is insoluble in potassium cyanide solution.

    0
    0
  • Dilute mineral acids decompose it with the formation of insoluble silver cyanide and hydrocyanic acid: KNC AgNC+HN03=HCN+ KNO 3 +AgNC. A boiling solution of potassium chloride with the double cyanide gives silver chloride and potassium cyanide.

    0
    0
  • Potassium cyanide is an excessively poisonous, colourless, deliquescent solid; it is readily soluble in water, but almost insoluble in absolute alcohol.

    0
    0
  • A large quantity of the salt is now prepared from the "spent oxide" of the gas works, the cyanogen compounds formed in the manufacture of the gas combining with the ferric oxide in the purifiers to form insoluble iron ferrocyanides.

    0
    0
  • It is soluble in water, but insoluble in alcohol.

    0
    0
  • It is insoluble in water and is not decomposed by acids.

    0
    0
  • It is soluble in water, but is insoluble in salt solutions.

    0
    0
  • The zinc sulphate is added in order to remove the ferrocyanide formed as an insoluble zinc salt: 2K 3 Fe(NC)6+2KI=2K 4 Fe(NC) 6 -0 2.

    0
    0
  • It is insoluble in dilute acids.

    0
    0
  • They are colourless liquids, readily soluble in alcohol and in ether, but insoluble in water.

    0
    0
  • Normal chromates on the addition of silver nitrate give a red precipitate of silver chromate, easily soluble in ammonia, and with barium chloride a yellow precipitate of barium chromate, insoluble in acetic acid.

    0
    0
  • After ignition it becomes almost insoluble in acids, and on fusion with silicates it colours them green; consequently it is used as a pigment for colouring glass and china.

    0
    0
  • Chromic chloride, CrC1 31 is obtained in the anhydrous form by igniting a mixture of the sesquioxide and carbon in a current of dry chlorine; it forms violet laminae almost insoluble in water, but dissolves rapidly in presence of a trace of chromous chloride; this action has been regarded as a catalytic action, it being assumed that the insoluble chromic chloride is first reduced by the chromous chloride to the chromous condition and the original chromous chloride converted into soluble chromic chloride, the newly formed chromous chloride then reacting with the insoluble chromic chloride.

    0
    0
  • It has the characteristic appearance of pure silk - a brilliant soft white body with a pearly lustre - insoluble in water, alcohol and ether, but it dissolves freely in concentrated alkaline solutions, mineral acids, strong acetic acid and in ammoniacal solution of oxide of copper.

    0
    0
  • It is almost insoluble in water, but readily dissolves in ammonium salts.

    0
    0
  • These compounds are insoluble in ether, are non-inflammable and exceedingly reactive.

    0
    0
  • The oxide and carbonate of magnesium are also invaluable as antidotes, since they form insoluble compounds with oxalic acid and salts of mercury, arsenic, and copper.

    0
    0
  • As alkaloids are insoluble in alkaline solutions, the oxide and carbonate - especially the former - may be given in alkaloidal poisoning.

    0
    0
  • He holds that space, time, matter, motion, force, are all full of the insoluble contradictions supposed by Spencer; and that all our beliefs, in Nature and in God, stand on the same footing of approximations.

    0
    0
  • The metallic borates are generally obtained in the hydrated condition, and with the exception of those of the alkali metals, are insoluble in water.

    0
    0
  • The Holy See directed all its energies towards the solution of the problem; in the event of its proving to be insoluble, it would take care that it should remain a festering sore in the body of the monarchy.

    0
    0
  • It was found, for instance, that a film of insoluble copper ferrocyanide, deposited in the walls of a porous vessel by the inward diffusion and meeting of solutions of copper sulphate and potassium ferrocyanide, would allow water to pass, but retained sugar dissolved in that liquid.

    0
    0
  • Strychnine crystallizes from alcohol in colourless prisms, which are practically insoluble in water, and with difficulty soluble in the common organic solvents.

    0
    0
  • The residue, consisting of alumina and potassium sulphate, was leached with water to separate the insoluble matter which was dried as usual.

    0
    0
  • After two or three hours the liquid is diluted till its density falls to 1.23, when it is passed through filter-presses to remove the insoluble ferric oxide and silica.

    0
    0
  • Aluminium hydrate, Al(OH) 3, is obtained as a gelatinous white precipitate, soluble in potassium or sodium hydrate, but insoluble in ammonium chloride, by adding ammonia to a cold solution of an aluminium salt; from boiling solutions the precipitate is opaque.

    0
    0
  • Aluminium fluoride, AlF 3, obtained by dissolving the metal in hydrofluoric acid, and subliming the residue in a current of hydrogen, forms transparent, very obtuse rhombohedra, which are insoluble in water.

    0
    0
  • CH 3, is an aromatic smelling liquid of boiling point 129.5-130° C. It is insoluble in water, but readily dissolves in alcohol.

    0
    0
  • It is insoluble in water, but is readily soluble in alcohol,, and ether.

    0
    0
  • In like manner, if the molten iron in the mixer contains manganese, this metal unites with the sulphur present, and the manganese sulphide, insoluble in the iron, slowly rises to the surface, and as it reaches the air, its sulphur oxidizes to sulphurous acid, which escapes.

    0
    0
  • This sulphide is nearly insoluble in the metal, but is readily soluble in the overlying basic slag, into which it therefore passes.

    0
    0
  • The free acid is not known; by the addition of the potassium salt to 50% acetic acid at - 20° C., the acid anhydride, benzene diazo oxide, (C6H5N2)20, is obtained as a very unstable, yellow, insoluble compound, exploding spontaneously at o° C. Strong acids convert it into a diazonium salt, and potash converts it into the diazotate.

    0
    0
  • In this last achievement Professor Finke finds the solution of a problem which Langlois had declared to be insoluble.

    0
    0
  • The esters of the aliphatic and aromatic acids are colourless neutral liquids, which are generally insoluble in water, but readily dissolve in alcohol and ether.

    0
    0
  • The neutral esters are as a rule insoluble in water and distil unchanged; on the other hand, the acid esters are generally soluble in water, are non-volatile, and form salts with bases.

    0
    0
  • The most powerful is digitoxin C34H54011, an extremely poisonous and cumulative drug, insoluble in water.

    0
    0
  • Digitalin, is crystalline and is also insoluble in water.

    0
    0
  • Diamond is insoluble in acid and alkalis, but is oxidised on heating with potassium bichromate and sulphuric acid.

    0
    0
  • If this view be, rejected and it is necessary to fall back on the choice between 64 and 67, the problem is perhaps insoluble, but 64 has somewhat more intrinsic probability, and 67 can be explained as due to an artificial system of chronology which postulated for Peter an episcopate of Rome of twenty-five years - a number which comes so often in the early episcopal lists that it seems to mean little more than "a long time," just as "forty years" does in the Old Testament.

    0
    0
  • For stone, marble, and earthenware a strong cement, insoluble in water, can be made as follows: - skimmed-milk cheeseis boiled in water till of a gluey consistency, washed, kneaded well in cold water, and incorporated with quicklime; the composition is warmed for use.

    0
    0
  • As an elementary substance, it is very similar in its physical properties to lead; it resembles lead chemically inasmuch as it forms an almost insoluble chloride and an insoluble iodide.

    0
    0
  • But the hydroxide of thallium, in most of its properties, comes very close to the alkali metals; it is strongly basic, forms an insoluble chloroplatinate, and an alum strikingly similar to the corresponding potassium compounds.

    0
    0
  • It is insoluble in water and in the alkalis, but readily dissolves in the mineral acids.

    0
    0
  • Thallic oxide, T1203, is obtained as a dark reddish powder, insoluble in water and alkalis, by plunging molten thallium into oxygen, or by electrolysing water, using a thallium anode.

    0
    0
  • Sulphuretted hydrogen, in the presence of free mineral acid, gives no precipitate; sulphide of ammonium, from neutral solutions, precipitates T12S as a dark brown or black precipitate, insoluble in excess of reagent.

    0
    0
  • Hawley employs sodium thiostannate which precipitates thallium as T1 2 SnS 4, insoluble in water, and which may be dried on a Gooch filter at 105°.

    0
    0
  • It is readily soluble in water and in alcohol, but is insoluble in chloroform and ether.

    0
    0
  • It crystallizes in needles, melting at 42°C., and boiling at 360 C. It is insoluble in water but readily soluble in alcohol and ether.

    0
    0
  • The manganites are amorphous brown solids, insoluble in water, and decomposed by hydrochloric acid with the evolution of chlorine.

    0
    0
  • The ferric and aluminium sulphates present are thus converted into insoluble basic salts, and the residue yields manganous sulphate when extracted with water.

    0
    0
  • The heat and pressure together exert a chemical action upon the sap, which becomes insoluble and itself preserves the wood from decay.

    0
    0
  • The enormous dramatic development in the symphonic music of Beethoven made the problem of the Mass with orchestral accompaniment almost insoluble.

    0
    0
  • From the crude oxide so obtained (which contains lanthanum and didymium oxides) the cerium may be separated by conversion into its double sulphate on the addition of potassium sulphate, the sulphates of the cerium group being insoluble in a saturated solution of potassium sulphate.

    0
    0
  • Pure alizarin crystallizes in red prisms melting at 290° C. It is insoluble in water, and not very soluble in alcohol.

    0
    0
  • Its value as a dyestuff depends on its power of forming insoluble compounds (lakes) with metallic oxides.

    0
    0
  • Here the free hydrochloric acid is converted into calcium chloride, and at the same time any ferric chloride present is converted into insoluble ferric hydroxide: 2FeC1 3 +3CaCO 3 +3H 2 0 = 2Fe(OH) 3 +3CaC1 2 -1-3CO 2.

    0
    0
  • Its principal constituents are always sodium carbonate and calcium sulphide, which are separated by the action of water, the former being soluble and the latter insoluble.

    0
    0
  • The calcium carbonate, being insoluble, is easily separated from the caustic liquor by filtration.

    0
    0
  • (Sectional Elevation.) heat for some hours in order to settle out 'the ferric oxide which it always contains, and which becomes insoluble (through the destruction of the sodium ferrite) only at high temperatures.

    0
    0
  • It forms a white friable mass which after ignition is insoluble in acids.

    0
    0
  • Thorium fluoride, ThF 4, is obtained as a heavy white insoluble powder by dissolving the hydrate in hydrofluoric acid and evaporating.

    0
    0
  • The caustic alkalis added to solutions of nickel salts give a pale green precipitate of the hydroxide, insoluble in excess of the precipitant.

    0
    0
  • Knorre (Ber., 1885, 18, p. 169) separate the metals by adding nitros01 3-naphthol in the presence of 50% acetic acid, a precipitate of cobalti nitroso-13-naphthol, [C 10 H 6 0(NO)] 3 Co, insoluble in hydrochloric acid, being formed, whilst the corresponding nickel compound dissolves in hydrochloric acid.

    0
    0
  • It forms a light yellow amorphous mass which is almost insoluble in acids.

    0
    0
  • It crystallizes in microscopic rhombohedra insoluble in cold acids.

    0
    0
  • By using hot acid the yellow anhydrous tungstic acid is precipitated, which is insoluble in water and in all acids except hydrofluoric. It may be obtained in a flocculent form by exposing the hexachloride to moist air.

    0
    0
  • Of the salts, the normal tungstates are insoluble in water with the exception of the alkaline tungstates; they are usually amorphous, but some can be obtained in the crystalline form.

    0
    0
  • By partial reduction of the tungstates under certain conditions products are obtained which are insoluble in acids and alkalis and present a bronze-like appearance which earned for them the name of tungsten bronzes.

    0
    0
  • It changes on exposure to air and dissolves slightly in water to give a brown solution, the insoluble portion gradually being converted into an oxide with evolution of hydrogen.

    0
    0
  • A nitride, W2N3, is obtained as a black powder by acting with ammonia on the oxytetrachloride or hexachloride; it is insoluble in sodium hydroxide, nitric and dilute sulphuric acids; strong sulphuric acid, however, gives ammonia and tungstic acids.

    0
    0
  • Ammonia does not react with tungsten or the dioxide, but with trioxide at a red heat a substance of the formula W 5 H 6 N 3 0 5 is obtained, which is insoluble in acids and alkalis and on ignition decomposes, evolving nitrogen, hydrogen and ammonia.

    0
    0
  • In some respects there is a very marked difference between fluorine and the other members of the group, for, whilst sodium chloride, bromide and iodide are readily soluble in water, sodium fluoride is much less soluble; again, silver chloride, bromide and iodide are practically insoluble in water, whilst, on the other hand, silver fluoride is appreciably soluble in water.

    0
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  • Many are readily soluble in water, the chief exceptions being silver chloride, mercurous chloride, cuprous chloride and palladious chloride which are insoluble in water, and thallous chloride and lead chloride which are only slightly soluble in cold water, but are readily soluble in hot water.

    0
    0
  • The proteid matter combines with a part of the tannin in the wine, forming an insoluble tannate, and this gradually subsides to the bottom of the cask, dragging with it the mechanically suspended matters which are the main cause of the wine's turbidity.

    0
    0
  • The main result of plastering is that the soluble tartrates in the wine are decomposed, forming insoluble tartrate of lime and soluble sulphate of potash.

    0
    0
  • The former, being soluble, is left in the water; but the latter, an insoluble body, is in part attached to the fibres, from which it is only separated by changing into soluble metapectic acid under the action of hot alkaline ley in the subsequent process of bleaching.

    0
    0
  • Silver and other insoluble impurities collected at the bottom of the trough up to the level of the lower side-tube, and were then run off through a plug in the bottom into settling tanks, from which they were removed for metallurgical treatment.

    0
    0
  • The electrolyte, when too impure for further use, is commonly recrystallized, or electrolysed with insoluble anodes to recover the copper.

    0
    0
  • Many attempts have been made to use crude sulphide of copper or matte as an anode, and recover the copper at the cathode, the sulphur and other insoluble constitutents being left at the anode.

    0
    0
  • Cuprous oxide corresponds to the series of cuprous salts, which are mostly white in colour, insoluble in water, and readily oxidized to cupric salts.

    0
    0
  • Copper sulphate is readily soluble in water, but insoluble in alcohol; it dissolves in hydrochloric acid with a considerable fall in temperature, cupric chloride being formed.

    0
    0
  • When pure the acid forms a colourless, amorphous mass, very soluble in water, less so in alcohol, and practically insoluble in ether.

    0
    0
  • It forms a crystalline powder which melts at 213° C. It is insoluble in alcohol, and nearly insoluble in cold water.

    0
    0
  • Scheele, in examining a specimen of pyrolusite, found a new substance to be present in the mineral, for on treatment with sulphuric acid it gave an insoluble salt which was afterwards shown to be identical with that contained in heavy spar.

    0
    0
  • Barium chloride, BaCl 2.2H 2 O, can be obtained by dissolving witherite in dilute hydrochloric acid, and also from heavy spar by ignition in a reverberatory furnace with a mixture of coal, limestone and calcium chloride, the barium chloride being extracted from the fused mass by water, leaving a residue of insoluble calcium sulphide.

    0
    0
  • The chloride crystallizes in colourless rhombic tables of specific gravity 3.9 and is readily soluble in water, but is almost insoluble in concentrated hydrochloric acid and in absolute alcohol.

    0
    0
  • It is practically insoluble in water, and is only very slightly soluble in dilute acids; it is soluble to some extent, when freshly prepared, in hot concentrated sulphuric acid, and on cooling the solution, crystals of composition BaSO 4 H 2 SO 4 are deposited.

    0
    0
  • Barium carbonate, BaCO 31 occurs rather widely distributed as witherite, and may be prepared by the addition of barium chloride to a hot solution of ammonium carbonate, when it is precipitated as a dense white powder of specific gravity 4.3; almost insoluble in water.

    0
    0
  • It is a white powder, almost insoluble in water, and when volatilized, condenses in two crystalline forms, either octahedral or prismatic. It is insoluble in sulphuric and nitric acids, but is readily soluble in hydrochloric and tartaric acids and in solutions of the caustic alkalies.

    0
    0
  • It is a nonvolatile white powder, and has a specific gravity of 6.6952; it is insoluble in water and almost so in acids - concentrated hydrochloric acid dissolving a small quantity.

    0
    0
  • It is insoluble in water, but dissolves slowly in hydrochloric acid.

    0
    0
  • It is a white powder almost insoluble in water and nitric acid, and when heated, is first converted into metantimonic acid, HSbO 3, and then into the pentoxide Sb205.

    0
    0
  • It is a white powder almost insoluble in water.

    0
    0
  • It is a white powder insoluble in water, alcohol and ether.

    0
    0
  • It forms a fine dark orange powder, insoluble in water, but readily soluble in aqueous solutions of the caustic alkalis and alkaline carbonates.

    0
    0
  • The ferric hydroxide accumulates in the sheath, and gradually passes into the more insoluble ferric oxide.

    0
    0
  • These facts show the great difficulty of the problem, which is probably insoluble by present methods of analysis; the only test, in fact, for the existence of a toxin is its physiological effect.

    0
    0
  • Calderon), or 280° C. (C. Graebe), and is readily soluble in water, alcohol and ether, but insoluble in chloroform and carbon bisulphide.

    0
    0
  • When dissolved in concentrated sulphuric acid and warmed to 210° C., the solution on pouring into water yields a precipitate of resorufin, C,2H7N03, an oxyphenoxazone, which is insoluble in water, but is readily soluble in hot concentrated hydrochloric acid, and in solutions of caustic alkalis.

    0
    0
  • This leaves the gold in the insoluble residue, which is filtered off, and the silver in the solution is thrown down by hydrochloric acid.

    0
    0
  • Nearly all lead ores contain more or less sulphur; and as in the process of solution in nitric acid this is oxidized to sulphuric acid which unites with the lead to form the very insoluble lead sulphate, it is simpler to add sulphuric acid to convert all the lead into sulphate and then evaporate until the nitric acid is expelled.

    0
    0
  • The salts of iron, copper, &c., are then dissolved in water and filtered from the insoluble silica, lead sulphate, and calcium sulphate, which are washed with dilute sulphuric acid.

    0
    0
  • The insoluble matter is treated with a hot solution of alkaline ammonium acetate, which dissolves the lead sulphate, the other materials being separated by filtration.

    0
    0
  • The most modern and the most generally accepted method is volumetric, and is based on the reaction between zinc chloride and potassium ferrocyanide, by which insoluble zinc ferrocyanide and soluble potassium chloride are formed; the presence of the slightest excess of potassium ferrocyanide is shown by a brownish tint being imparted by the solution to a drop of uranium nitrate.

    0
    0
  • The potassium cyanide method is based on the fact that, when potassium cyanide is added to an ammoniacal solution of a salt of copper, the insoluble copper cyanide is formed, the end of the reaction being indicated by the disappearance of the blue colour of the solution.

    0
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  • Soc. Morphine, or morphia, crystallizes in prisms with one molecule of water; it is soluble in woo parts of cold water and in 160 of boiling water, and may be crystallized from alcohol; it is almost insoluble in ether and chloroform.

    0
    0
  • " The Chinese recognize the following grades of opium: (I) ' raw opium,' as imported from India; (2) ' prepared opium,' opium made as above; (3) ' opium dross,' the scrapings from the opium pipe; this is reboiled and manufactured as a second-class prepared opium; a Chinese doctor stated lately at a coroner's inquest on a case of poisoning that it was more poisonous than the ordinary prepared opium; (4) ' nai chai ' (opium dirt), the insoluble residue left on exhausting the raw opium thoroughly with water.

    0
    0
  • By this process of preparation a considerable portion of the narcotine, caoutchouc, resin, oil or fatty and insoluble matters are removed, and the prolonged boiling, evaporating and baking over a naked fire tend to lessen the amount of alkaloids present in the extract.

    0
    0
  • Others hold the problem to be insoluble, and not needing to be solved.

    0
    0
  • This salt, insoluble in water but soluble in brine, also acts upon argentite (Ag 2 S-+-Cu 2 C1 2 =2AgC1±-CuS±-Cu) and pyrargyrite (2Ag 3 SbS 3 -I-Cu 2 C12 = 2AgC1 +Ag 2 S +2Ag +2CuS +Sb2S3), and would give with silver sulphide in the presence of quicksilver, the Patioreaction; metallic silver, cupric sulphide, and mercurous chloride (2Ag 2 S+Cu 2 C1 2 +2Hg=4Ag+2CuS+Hg 2 C1 2), but the iron decomposes the quicksilver salt, setting free the quicksilver.

    0
    0
  • It is almost insoluble in water, soluble in 50,000 parts of nitric acid, and more soluble in strong hydrochloric acid and solutions of alkaline chlorides.

    0
    0
  • Thymol has a strong odour of thyme and a pungent taste, and is freely soluble in alcohol, ether, chloroform or olive oil, but almost insoluble in cold water.

    0
    0
  • The other alkaloids are distinguished from quinine thus: quinidine resembles quinine, but is dextro-rotatory, and the iodide is very insoluble in water; the solution of cinchonidine, which is laevo-rotatory, does not give the thalleoquin test, nor fluorescence; cinchonine resembles cinchonidine in these respects, but is dextrorotatory.

    0
    0
  • It is found, however, that all the soluble salts are bitter, whilst the tasteless ones are insoluble.

    0
    0
  • Of the insoluble salts we may notice the tannate, the propionic acid ester (euquinine) and carbonic acid ester (aristoquin), the salicylic acid ester.

    0
    0
  • Lithium phosphate, Li 3 PO 4, obtained by the addition of sodium phosphate to a soluble lithium salt in the presence of sodium hydroxide, is almost insoluble in water.

    0
    0
  • The whole question is still unsolved, and perhaps insoluble.

    0
    0
  • Phosphorus is nearly insoluble in water, but dissolves in carbon bisulphide, sulphur chloride, benzene and oil of turpentine.

    0
    0
  • It is a dark red microcrystalline powder, insoluble in carbon bisulphide, oil of turpentine, &c., and having a density of 2.2.

    0
    0
  • It is a colourless liquid which boils at 57°-58° C. It is insoluble in water, but soluble in alcohol and ether.

    0
    0
  • It is a yellow solid, which is insoluble in water.

    0
    0
  • The dialkyl phosphinic acids are also colourless compounds, the majority of which are insoluble in water.

    0
    0
  • The commonest form is P 3 N 3 C1 6, a crystalline solid, insoluble in water, but soluble in alcohol and ether.

    0
    0
  • It is a colourless oily liquid of specific gravity o 845 0 boiling at 166° C., almost insoluble in water, soluble in ether and in alcohol.

    0
    0
  • With ferric salts its solution gives a deep blue colour, and with ferrous salts, after exposure to the air, an insoluble, blue-black, ferroso-ferric gallate.

    0
    0
  • It is almost insoluble in water, but dissolves readily in the common organic solvents.

    0
    0
  • It is worthy of notice that while many metals dissolve in cold dilute sulphuric acid, with the liberation of hydrogen, in accordance with the typical equation: M -{- H 2 50 4 = MSO 4 -1H2 (M denoting one atom of divalent or two atoms of a monovalent metal), there are several (copper, mercury, antimony, tin, lead and silver) which are insoluble in the cold dilute acid, but dissolve in the hot strong acid with evolution of sulphur dioxide, thus: M -}- 2H 2 250 4 = MSO 4 SO 2 + 2H 2 0.

    0
    0
  • As a general class, the sulphates are soluble in water, and exhibit well crystallized forms. Of the most insoluble we may notice the salts of the metals of the alkaline earths, barium, strontium and calcium, barium sulphate being practically insoluble, and calcium sulphate sparingly but quite appreciably soluble.

    0
    0
  • Lead sulphate is very slightly soluble in water, soluble in strong sulphuric acid, and almost insoluble in alcohol.

    0
    0
  • In solution, sulphates are always detected and estimated by the formation of a white precipitate of barium sulphate, insoluble in water and all the common reagents.

    0
    0
  • Small doses of the aromatic acid also serve as a prophylactic to those artisans who work in lead and as a treatment in lead poisoning in order to form an insoluble sulphate of lead.

    0
    0
  • From this result insoluble controversies and serious uncertainties, both in the study and practice of the law; and, finally, it has become impossible for most people to have a first-hand knowledge of the actual laws.

    0
    0
  • Trans., 1 79 0, p. 359) that iron, after having been immersed in strong nitric acid, is insoluble in acids, neither does it precipitate metals from solutions.

    0
    0
  • These compounds are insoluble in concentrated, but dissolve readily in dilute acids.

    0
    0
  • Many oxychlorides are known; soluble forms are obtained by dissolving precipitated ferric hydrate in ferric chloride, whilst insoluble compounds result when ferrous chloride is oxidized in air, or by boiling for some time aqueous solutions of ferric chloride.

    0
    0
  • Pyrite may be prepared artificially by gently heating ferrous sulphide with sulphur, or as brassy octahedra and cubes by slowly heating an intimate mixture of ferric oxide, sulphur and salammoniac. It is insoluble in dilute acids, but dissolves in nitric acid with separation of sulphur.

    0
    0
  • Fe2P forms crystalline needles insoluble in acids except aqua regia; it is obtained by fusing copper phosphide with iron.

    0
    0
  • It is insoluble in dilute acetic acid, but dissolves in mineral acids.

    0
    0
  • It is insoluble in water, but dissolves readily in alcohol and ether.

    0
    0
  • They were quite sure they had attained a certain ' gnosis ' - had more or less successfully solved the problem of existence; while I was quite sure that I had not, and had a pretty strong conviction that the problem was insoluble.

    0
    0
  • It dissolves slowly in hydrofluoric acid and in nitric acid, the solution turning blue; it is insoluble in hydrochloric acid.

    0
    0
  • It is a grey powder which is insoluble in water, but dissolves in acids to give a lavenderblue solution which possesses strong reducing properties.

    0
    0
  • It forms a black amorphous powder or a dark green crystalline mass, and is insoluble in water and in most acids.

    0
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  • It is an amorphous or crystalline mass of indigo-blue or steel-grey colour, which is insoluble in water and is also infusible.

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  • According to Ditte (Comptes rendus, 101, p. 698) it exists in three forms: a red amorphous soluble form which results when ammonium metavanadate is heated in a closed vessel and the residue oxidized with nitric acid and again heated; a yellow amorphous insoluble form which is obtained when the vanadate is heated in a current of air at 440° C.; and a red crystalline form which is almost insoluble in water.

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  • The hypovanadates are insoluble in water, except those of the alkali metals, which are obtained by the addition of caustic alkalis to concentrated solutions of the chloride or sulphate of the tetroxide.

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  • The tri-iodide, AsI3 prepared by subliming arsenic and iodine together in a retort, by leading arsine into an alcoholic iodine solution, or by boiling powdered arsenic and iodine with water, filtering and evaporating, forms brick-red hexagonal tables, of specific gravity 4.39, soluble in alcohol, ether and benzene, and in a large excess of water; in the presence of a small quantity of water, it is decomposed with formation of hydriodic acid and an insoluble basic salt of the composition 4AsOI.

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  • The arsenites of the alkali metals are soluble in water, those of the other metals are insoluble in water, but are readily soluble in acids.

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  • Terephthalic acid, formed by oxidizing para-diderivatives of benzene, or best by oxidizing caraway oil, a mixture of cymene and cuminol, with chromic acid, as almost insoluble in water, alcohol and ether; it sublimes without melting when heated.

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  • pp. 284 ff., he has withdrawn this, and it is probably too hypothetical; it is, however, the only serious effort to deal with the difficulty, which if not insoluble is at least unsolved.

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  • They are colourless liquids, which are insoluble in water and possess a characteristic offensive smell.

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  • The alkaline chromates are soluble in water, those of most other metals being insoluble.

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  • It is readily reduced on heating with carbon or hydrogen, and does not pass into an insoluble form when ignited.

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  • It is readily soluble in caustic potash, but insoluble in ammonia.

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  • They are all readily inflammable and are practically insoluble in water.

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  • The oils and fats are practically insoluble in water.

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  • With the exception of castor oil they are insoluble in cold alcohol; in boiling alcohol somewhat larger quantities dissolve.

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  • If the action of air and moisture is allowed free play, the hydrolysis of the oils and fats may become so complete that only the insoluble fatty acids remain behind, the glycerin being washed away.

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  • This separation is effected by converting the alkali soaps of the fatty acids into lead soaps and treating the latter with ether, in which the lead salts of the saturated acids are insoluble, whereas the salts of the above-named unsaturated acids are soluble.

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  • The essential oils are for the most part insoluble or only very sparingly soluble in water, but in alcohol, ether,`,fatty oils and mineral oils they dissolve freely.

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  • The process is based on the principle that whilst the odoriferous substances are insoluble in water, their vapour tension is reduced on being treated with steam so that they are carried over by a current of steam.

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  • Calcium salts form insoluble soaps with fats, and combine with albumen in a manner which makes them soothing and astringent rather than irritating.

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  • Their insoluble compounds are much less active locally than the soluble, and in many cases are only effective to the extent to which they are dissolved by the secretions.

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  • It is fine, tenacious and bright red, and represents the insoluble and thoroughly weathered impurities which are left behind when the calcareous matter is removed in solution by carbonated waters.

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  • Gummic acid is soluble in water; when well dried at ioo° C., it becomes transformed into metagummic acid, which is insoluble, but swells up in water like gum tragacanth.

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  • Gum arabic, when heated to 150° C. with two parts of acetic anhydride, swells up to a mass which, when washed with boiling water, and then with alcohol, gives a white amorphous insoluble powder called acetyl arabin C 6 H $ (C 2 H 3 O) 2 O 5.

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  • The insoluble part of the gum is a calcium salt of bassorin (C12H20010), which is devoid of taste and smell, forms a gelatinoid mass with water, but by continued boiling is rendered soluble.

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  • Gum tragacanth is used in calico-printing as a thickener of colours and mordants; in medicine as a demulcent and vehicle for insoluble powders, and as an excipient in pills; and feltsetting and mending beetles and other insect specimens.

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  • This is the change in conformation that is associated with protease resistance and the accumulation of insoluble aggregates of prion protein.

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  • Bran, an insoluble fiber, reduces the absorption of calcium enough to cause urinary calcium to fall.

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  • For example, the enzyme cellulase breaks down cellulose, an insoluble polymer, which makes up a major part of plant tissues.

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  • Insoluble material was removed by centrifugation at 16,000 rpm for 40 minutes at 4°C.

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  • N.B. Do not breathe on the lead citrate at any stage as insoluble lead carbonate will form which produces dense spots over the sections.

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  • In addition, the presence of soluble fiber may influence how much bile acid binds to the insoluble fiber that is present.

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  • fibre laxative action is provided by the insoluble fiber contained in the fig which helps in moving food through the digestive system.

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  • In these disorders, normally soluble proteins fold abnormally and become insoluble fibrils that damage tissue.

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  • Explain how blood clots by platelets producing thrombin, which converts soluble fibrinogen into insoluble fibrin.

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  • Explain how blood clots by platelets producing thrombin, which converts soluble fibrinogen into insoluble fibrin.

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  • fibrinogen into insoluble fibrin.

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  • They are insoluble in the beer and cause the beer froth to collapse.

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  • glucose into insoluble glycogen and store it.

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  • Insoluble iron and iron compounds are low in toxicity, so the results strongly indicate that the nanotubes themselves induced the granulomas.

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  • Some examples may help you to remember the trend: magnesium hydroxide appears to be insoluble in water.

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  • They have played a leading role in creating the insoluble indebtedness of the Third World.

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  • I know very well that this riddle seems insoluble.

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  • The hard coating which forms inside the rim is phosphate fertilizer which has become insoluble.

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  • Top Approach 2: If the peptide remains insoluble, look at Its amino acid composition prior to proceeding further.

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  • Many questions of tactical and strategical character will appear insoluble if approached in a formalistic way.

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  • insoluble fiber.

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  • insoluble fiber, reduces the absorption of calcium enough to cause urinary calcium to fall.

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  • insoluble lead carbonate will form which produces dense spots over the sections.

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  • insoluble contradiction.

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  • insoluble salt is filtered off to separate it from the solution, washed with pure water to remove any residual salt solution.

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  • insoluble residue.

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  • Maybe you can solve a seemingly insoluble problem, or want to see how others have tackled the situation you now face.

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  • It was found to be virtually insoluble in water.

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  • But isn't the digital divide just a function of the apparently insoluble economic gap between the developed and developing world?

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  • Problem #4 Unfortunately, the issue of resource usage is almost insoluble.

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  • Some materials, such as starch, are relatively insoluble and consequently have little effect on water potential.

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  • Tangles consist of highly insoluble pairs of filaments which are wound round each other like a double-stranded rope.

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  • insoluble in water may be facilitated by cleaning the contaminated area with cold soapy water.

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  • insoluble in alcohol.

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  • insoluble in organic solvents This is also typical of ionic solids.

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  • insoluble in alcoholic solutions.

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  • laxative action is provided by the insoluble fiber contained in the fig which helps in moving food through the digestive system.

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  • magnesium hydroxide appears to be insoluble in water.

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  • manganate ion, MnO 4 - loses two oxygen atoms and is reduced to insoluble manganese dioxide MnO 2.

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  • micelle nanotechnology - Our novel drug delivery system which enables insoluble active pharmaceuticals to be solubilised.

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  • Development products Proprietary micelle nanotechnology - Our novel drug delivery system which enables insoluble active pharmaceuticals to be solubilised.

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  • Alternatively, the phosphates can complex with organic matter, forming insoluble organic phosphates.

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  • Brief scientific background Kidney stones are most commonly composed of insoluble salts of calcium.

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  • The barium sulfate is highly insoluble and the very heavy barium atoms are very effective at scattering X-radiation.

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  • It is an indigo-blue powder, soluble in hydrochloric acid, but insoluble in dilute nitric and sulphuric acids.

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  • It is thus obtained as an olive green precipitate which is insoluble in acids and alkalis.

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  • The cobaltous salts are formed when the metal, cobaltous oxide, hydroxide or carbonate, are dissolved in acids, or, in the case of the insoluble salts, by precipitation.

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  • The insoluble salts are rose-red or violet in colour.

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  • It is insoluble in dilute acids, but is readily soluble in excess of potassium cyanide.

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  • He sees insoluble contradictions in every mode of conceiving God as real, yet he advocates religious belief, though the object of that belief have but an abstract or imaginary existence.

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  • There are certainly at least two resins in the powder (which is known officially as Podophylli resina), one of them being soluble and the other insoluble in ether.

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  • It is a brownish amorphous solid, which is insoluble in water.

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  • It is readily soluble in water and alcohol, but insoluble in ether.

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  • After the vigorous reaction has ceased and all the sodium has been used up, the mass is thrown into dilute hydrochloric acid, when the soluble sodium salts go into solution, and the insoluble boron remains as a brown powder, which may by filtered off and dried.

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  • It is insoluble in water and unaffected by most reagents, but when heated in a current of steam or boiled for some time with a caustic alkali, slowly decomposes with evolution of ammonia and the formation of boron trioxide or an alkaline borate; it dissolves slowly in hydrofluoric acid.

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  • Boron can be estimated by precipitation as potassium fluoborate, which is insoluble in a mixture of potassium acetate and alcohol, For this purpose only boric acid or its potassium salt must be present; and to ensure this, the borate can be distilled with sulphuric acid and methyl alcohol and the volatile ester absorbed in potash.

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  • The glycols are somewhat thick liquids, of high boiling point, the pinacones only being crystalline solids; they are readily soluble in water and alcohol, but are insoluble in ether.

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  • This precipitate is insoluble in cold dilute acids, in ammonium sulphide, and in solutions of the caustic alkalis," a behaviour which distinguishes it from the yellow sulphides of arsenic and tin.

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  • Amber is not homogeneous in composition, but consists of several resinous bodies more or less soluble in alcohol, ether and chloroform, associated with an insoluble bituminous substance.

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  • Molybdenum sesquioxide, Mo 2 O 3, a black mass insoluble in acids, is formed by heating the corresponding hydroxide in vacuo, or by digesting the trioxide with zinc and hydrochloric acid.

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  • It forms quadratic prisms, having a violet reflex and insoluble in boiling hydrochloric acid.

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  • It forms red crusts, is insoluble in cold water, but is decomposed by boiling water.

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  • As much sugar as is produced in excess of the immediate requirements of the cell is converted into the insoluble form of starch by the plastidsof the chlorophyll apparatus, and is so withdrawn from the sphere of action, thereby enabling the construction of further quantities of sugar to take place.

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  • Both cuticularized and suberized membranes are insoluble in cuprammonia, and are colored yellow or brown in a soltition of chlor-iodide of zinc. It is probable that the corky or suberized cells do not contain any cellulose (Gilson, Wisselingh); whilst cuticularized cells are only modified in their outer layers, cellulose inner layers being still recognizable.

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  • By the early chemists, the term earth was used to denote those non-metallic substances which were insoluble in water and were unaffected by strong heating; and as some of these substances (e.g.

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  • The salts of all the metals of this group usually crystallize well, the chlorides and nitrates dissolve readily in water, whilst the carbonates, phosphates and sulphates are either very sparingly soluble or are insoluble in water.

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  • It is also readily soluble in solutions of the caustic alkalis, slightly soluble in aqueous ammonia solution, and almost insoluble in sodium carbonate solution.

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  • If the acid has been swallowed, wash out the stomach and give chalk, the carbolate of calcium being insoluble.

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  • It forms grey coloured octahedra of specific gravity 5.49 6 at 20° C., melting at 900° C.; it burns at a red heat, is insoluble in hydrochloric acid, but dissolves in aqua regia, and is also soluble in molten alkalis.

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  • It is insoluble in water,' but readily soluble in carbon bisulphide, sulphur chloride and oil of turpentine.

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  • Amorphous sulphur or Sy exists in two forms, one soluble in carbon bisulphide, the other insoluble.

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  • Milk of sulphur (see above), obtained by decomposing a polysulphide with an acid, contains both forms. The insoluble variety may also be obtained by decomposing sulphur chloride with water and by other reactions.

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  • The solid derived from SA is crystalline and soluble in carbon bisulphide, that from S, is amorphous and insoluble.

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  • As to the formation of precipitated sulphur, Smith considers that the element first separates in the liquid S,,, condition, which is transformed into SA and finally into Sa; the insoluble (in carbon bisulphide) forms arise when little of the Sw has been transformed; whilst the soluble consist mainly of Sa.

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  • The neutral alkaline salts are soluble in water and show an alkaline reaction, the other neutral salts being either insoluble or difficultly soluble in water.

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  • With our present knowledge the problem of the original form of sacrifice, if there be a single primary form, is insoluble.

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  • The course of his narrative is unperplexed by doubtful or insoluble problems. The painting is filled in with primary colours and with a free hand; and any sense of crudity which may be awakened by close inspection is compensated by the vigour and massive effectiveness of the whole.

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  • It dissolves readily in water and alcohol in all proportions, but is insoluble in ether.

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  • Ferric hydrate, iron soaps and all insoluble impurities are precipitated.

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  • Biot - who loved and admired him as a son - publicly announced that his enterprise was chimerical and the problem insoluble; Dumas evidently thought so too, for he advised Pasteur not to spend more of his time on such a subject.

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  • manures), manufactured or imported, to state the percentage of the nitrogen, of the soluble and insoluble phosphates, and of the potash in each article sold, and this statement was to have the effect of a warranty.

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  • The citrates are a numerous class of salts, the most soluble of which are those of the alkaline metals; the citrates of the alkaline earth metals are insoluble.

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  • In a scientific definition the compounds of fatty acids with basic metallic oxides, lime, magnesia, lead oxide, &c., should also be included under soap; but, as these compounds are insoluble in water, while the very essence of a soap in its industrial relations is solubility, it is better to speak of the insoluble compounds as " plasters, " limiting the name " soap " as the compounds of fatty acids with soda and potash.

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  • Rotondi in 1885, however, regarded a neutral soap as hydrolysing to a basic salt, soluble in both hot and cold water, and an acid salt, insoluble in cold and sparingly soluble in hot.

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  • Either common salt or strong brine in measured quantity is added to the charge, and, the soap being insoluble in such salt solution, a separation of constituents takes place: the soap collects on the surface in an open granular condition, and the spent lye sinks to the bottom after it has been left for a short time to settle.

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  • Marine Soap. - These soaps are so named because they are not insoluble in a strong solution of salt; hence they form a lather and can be used for washing with sea-water.

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  • The most important points in soap analysis are (1) determination of the fatty matter, (2) of the total alkali, (3) of the substances insoluble in water, (4) of the water.

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  • The residue on the filter paper gives (3) the substances insoluble in water.

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  • It is almost insoluble in water, but mixes in all proportions with absolute alcohol, ether, benzene and various oils.

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  • It is insoluble in acids and decomposes when heated to a sufficiently high temperature.

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  • Fusion with caustic potash converts it into a mixture of potassium ruthenate and ruthenium sesquioxide, Ru 2 0 3, which is a black, almost insoluble powder.

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  • It is insoluble in water, but gradually decomposes, forming a hydrated oxide, Ru 2 0 5 H 2 O.

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  • The insoluble residue contains a mixture of two sulphides, one of which is converted into the sulphate by nitric acid, whilst the other (a crystalline solid) is insoluble in acids.

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  • This is also the case if two substances are brought together in solution, by the action of which upon each other a third body is formed which is insoluble in the solvent employed, and which also does not tend to react upon any of the substances present; for instance, when a solution of a chloride is added to a solution of a silver salt, insoluble silver chloride is precipitated, and almost the whole of the silver is removed from solution, even if the amount of the chloride employed be not in excess of that theoretically required.

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  • But if there be no tendency to form an insoluble compound, or one which is not liable to react upon any of the other substances present, this is no longer the case.

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  • Certain substances, such as the precious metals, are quite insoluble in the bead, but float about in it.

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  • Arsenic is insoluble in the acid, but immediately dissolves in the bleaching-powder.

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  • Certain substances are insoluble in all these reagents, and other methods, such as the fusion with sodium carbonate and potassium nitrate, and subsequent treatment with an acid, must be employed.

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  • Some of these insoluble compounds can be detected by their colour and particular reactions.

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  • If barium is present, the solution of the carbonates in hydrochloric acid is evaporated and digested with strong alcohol for some time; barium chloride, which is nearly insoluble in alcohol,is thus separated, the remainder being precipitated by a few drops of hydrofluosilicic acid, and may be confirmed by the ordinary tests.

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  • When boiled with calcium chloride and ammonia, salicylic acid gives a precipitate of insoluble basic calcium salicylate, C 6 H 4 ‹ 0 2 i Ca, a reaction which serves to distinguish it from the isomeric metaand para-hydroxybenzoic acids.

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  • It encountered many difficulties, and until the definite proof of the stegomyia hypothesis of yellowfever inoculation made by the United States army surgeons in Cuba in 1900, the greatest problem seemed insoluble.

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    0
  • The calcium salt, CaN 2 O 2.4H 2 O, formed by the action of calcium chloride on the silver salt in the presence of a small quantity of nitric acid, is a lustrous crystalline powder, almost insoluble in water but readily soluble in dilute acids.

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    0
  • It is a reddish-yellow crystalline solid, insoluble in water and melting at 178° C. It explodes readily when melted or subjected to shock.

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    0
  • It crystallizes in colourless plates melting at 20°C. and boiling at 202°C.; it is insoluble in water, but readily dissolves in the ordinary organic solvents.

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    0
  • The globulins are insoluble in water and in dilute acids, but soluble in alkalies and in neutral salt solutions; these solutions are coagulated on boiling.

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  • insoluble in pure water, but soluble in salt solutions; " edestin," a globulin of this class, is very widely distributed.

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  • Fibrinogen is insoluble in water, but soluble in salt solutions; it has three different coagulation temperatures, 56°, 6 7°, 75°.

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  • It is insoluble in water, while its salts are readily soluble.

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  • By the rennet ferment caseinogen is converted into casein, a substance resembling caseinogen in being soluble in water, but differing in having an insoluble calcium salt.

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    0
  • It is quite insoluble in water, dilute acids and alkalies.

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  • Fibroin is insoluble in water, acids and alkalies; silk-glue resembles gelatin in its solubility, but it is less readily gelatinized.

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    0
  • " Spongin," the matrix of bath-sponge, is insoluble in water and dilute acids, but soluble in concentrated mineral acids.

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    0
  • It forms shiny, homogeneous masses, quite insoluble in cold water and in salt solutions, but soluble in alkalies.

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  • Melanins obtained from tumours form black, shiny masses; they are insoluble in water, neutral salt solutions, dilute acids and in the common organic solvents.

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    0
  • If the anode consist of platinum, cyanogen gas is evolved thereat from the anion Ag(CN) 2, and the platinum becomes covered with the insoluble silver cyanide, AgCN, which soon stops the current.

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  • Another method is to allow an acid to act on an insoluble salt, and to measure the quantity which goes into solution.

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  • Silver chloride is a very insoluble substance, and here the amount in solution is still further reduced by the presence of excess of chlorine ions of the potassium salt.

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  • Paramide is a white amorphous powder, insoluble in water and alcohol.

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    0
  • It is produced by the addition of a solution of lead salt to an excess of ammonium carbonate, as an almost insoluble white precipitate.

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  • Lead sulphate, PbSO 4, occurs in nature as the mineral anglesite (q.v.), and may be prepared by the addition of sulphuric acid to solutions of lead salts, as a white precipitate almost insoluble in water (1 in 21,739), less soluble still in dilute sulphuric acid (1 in 36,504) and insoluble in alcohol.

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  • Lead nitrate, Pb(N03)2, is obtained by dissolving the metal or oxide in aqueous nitric acid; it forms white crystals, difficultly soluble in cold water, readily in hot water and almost insoluble in strong nitric acid.

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  • But the most delicate precipitant for lead is sulphuretted hydrogen, which produces a black precipitate of lead sulphide, insoluble in cold dilute nitric acid, less so in cold hydrochloric, and easily decomposed by hot hydrochloric acid with formation of the characteristic chloride.

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  • (3) Plumbi Carbonas, white lead, a mixture of the carbonate and the hydrate, a heavy white powder insoluble in water; it is not used internally, but from it is made Unguentum Plumbi Carbonatis, strength 1 in so parts of paraffin ointment.

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  • As a rule the soluble salts if taken in sufficient quantities produce acute poisoning, and the insoluble salts chronic plumbism.

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  • The treatment is the prompt use of emetics, or the stomach should be washed out, and large doses of sodium or magnesium sulphate given in order to form an insoluble sulphate.

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    0
  • Schultz, Ann., 1879, 196, p. 35); or the two hydrocarbons may be separated by carbon bisulphide, in which anthracene is insoluble.

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    0
  • It is a crystalline solid, which sublimes at 112°-115° C. It is insoluble in water, and is only slightly soluble in alcohol and ether.

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    0
  • It is a reddish amorphous mass, insoluble in alcohol, and when distilled yields picoline (methyl pyridine) (A.

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    0
  • The mother liquor includes generally more or less of nickel, cobalt, zinc and other heavy metals, which, as Wailer showed, can be removed as insoluble sulphides by the addition of ammonium sulphide; uranium, under the circumstances, is not precipitated by this reagent.

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  • O, is obtained by heating uranyl nitrate to 250° as a yellow solid, insoluble in water, but soluble in acids with the formation of uranyl salts.

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    0
  • These salts generally resemble the bichromates; they are yellow in colour, insoluble in water, soluble in acids, and decomposed by heat.

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    0
  • It is almost insoluble in water, but readily soluble in alcohol and ether.

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  • (I) Commercially pure tin is treated with nitric acid, which converts the tin proper into the insoluble metastannic acid, while the copper, iron, &c., become nitrates; the metastannic acid is washed first with dilute nitric acid, then with water, and is lastly dried and reduced by fusion with black flux or potassium cyanide.

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  • It is insoluble in water and in nitric acid and apparently so in hydrochloric acid; but if heated with this last for some time it passes into a compound, which, after the acid mother liquor has been decanted off, dissolves in water.

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    0
  • Stannous salt solutions yield a brown precipitate of SnS with sulphuretted hydrogen, which is insoluble in cold dilute acids and in real sulphide of ammonium, (NH 4) 2 S; but the yellow, or the colourless reagent on addition of sulphur, dissolves the precipitate as SnS 2 salt.

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  • Stannic salt solutions give a yellow precipitate of SnS 2 with sulphuretted hydrogen, which is insoluble in cold dilute acids but readily soluble in sulphide of ammonium, and is re-precipitated therefrom as SnS2 on acidification.

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    0
  • This particular product was insoluble in a mixture of ether and alcohol, and its composition could be expressed by the term tri-nitrocellulose.

    0
    0
  • The constitution of guncotton is a difficult matter to investigate, primarily on account of the very insoluble nature of cellulose itself, and also from the fact that comparatively slight variations in the concentration and temperature of the acids used produce considerable differences in the products.

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    0
  • The nitrates are also very insoluble substances, all the so-called solvents merely converting them into jelly.

    0
    0
  • The nitrate of this base (known as nitron) is so insoluble that nitrates may be gravimetrically estimated with its help. These bases combine with the alkyl iodides to yield quaternary ammonium salts.

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  • form an insoluble calcium soap. The interaction between the soaps, the phosphates and the carbonates which are brought by the blood and lymph to the part results in the weaker fatty acids being replaced by phosphoric and carbonic acid, and thus in the formation of highly insoluble calcium phosphate and carbonate deposits in the disorganized tissues.

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  • It is almost insoluble in water.

    0
    0
  • All carbonates, except those of the alkali metals and of thallium, are insoluble in water; and the majority decompose when heated strongly, carbon dioxide being liberated and a residue of an oxide of the metal left.

    0
    0
  • Many carbonates which are insoluble in water dissolve in water containing carbon dioxide.

    0
    0
  • Tin and antimony (also arsenic) are converted by it (ultimately) into hydrates of their highest oxides Sn0 2, Sb205 (As 2 O 5) - the oxides of tin and antimony being insoluble in water and in the acid itself.

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    0
  • The following are the most important exceptions: silver chloride, AgC1, and mercurous chloride, HgCI, are absolutely insoluble; lead chloride, PbC1 2, and cuprous chloride, CuCI, are very sparingly soluble in water.

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  • - Fischer found that if one molecule of phenylhydrazine acted upon one molecule of an aldose or ketose a hydrazone resulted which in most cases was very soluble in water, but if three molecules of the hydrazine reacted (one of which is reduced to ammonia and aniline) insoluble crystalline substances resulted, termed osazones, which readily characterized the sugar from which it was obtained.

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  • The oxygen of the air may also bring about chemical changes which result in the production of soluble substances removable by rain, the insoluble parts being left in a loosened state.

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  • The steps in the breaking down of the highly complex nitrogenous proteid compounds contained in the humus of the soil, or applied to the latter by the farmer in the form of dung and organic refuse generally, are many and varied; most frequently the insoluble proteids are changed by various kinds of putrefactive bacteria into soluble proteids (peptones, &c.), these into simpler amido-bodies, and these again sooner or later into compounds of ammonia.

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  • It contains from 48 to 75% of sodium nitrate and from 20 to 40% of common salt, which are associated with various minor saline components, including sodium iodate and more or less insoluble mineral, and also some organic matter, e.g.

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    0
  • By heating the nitrate it is obtained as hemimorphous pyramids belonging to the hexagonal system; and by heating the chloride in a current of steam as hexagonal prisms. It is insoluble in water; it dissolves readily in all aqueous acids, with formation of salts.

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  • It is a white powder, and is insoluble in water.

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  • It dissolves in mineral acids, but is insoluble in acetic acid.

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  • - From neutral solutions of its salts zinc is precipitated by sulphuretted hydrogen as sulphide, ZnS - a white precipitate, soluble, but by no means readily, in dilute mineral acids, but insoluble in acetic acid.

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  • But in practice the results were not wholly satisfactory, and it was a long time before he recognized one important reason for the failure in the fact that to prevent the alkalis from being washed away by the rain he had taken pains to add them in an insoluble form, whereas, as was ultimately suggested to him by experiments performed by J.

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  • It melts at 213° C. and boils at 351° C. It is insoluble in water, sparingly soluble in alcohol and ether, but readily soluble in hot benzene.

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  • aquifolium, Hydrastis canadensis, &c. It is a yellow, crystalline solid, insoluble in ether and chloroform, soluble in 41 parts of water at 21°, and moderately soluble in alcohol.

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  • It is a monacid base; the hydrochloride, C 20 H 17 N0 4 HC1, is insoluble in cold alcohol, ether and chloroform, and soluble in 500 parts of water; the acid sulphate, C 20 H 17 N0 4 H 2 SO 4, dissolves in about loo parts of water.

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  • It is insoluble in ether, and is more active than jalapin.

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