Mixtures sentence example

mixtures
  • All these mixtures when solidified may fairly be termed alloys.'
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  • Equal importance attached to faulty mixtures or dyscrasiae of the blood.
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  • 7 represents the specific volumes of mixtures of ammonium and potassium sulphates; the ordinates re presenting specific volumes, and the abscissae the per centage composition of the mixture.
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  • For this reason chemical agents are added to glass mixtures to remove or neutralize accidental colour.
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  • In the manufacture of tobacco for smoking, we have to do with the numerous forms of tobacco used for smoking in pipes, embracing cut smoking mixtures, cake or plug, and roll or spun tobacco.
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  • Mixtures are an excellent way to add unique flavor to salads, sandwiches, and other dishes.
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  • All the mixtures whose composition lies between that of A and C deposit crystals of pure.
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  • It converts many metallic oxides into mixtures of nitrates and nitrites, and attacks many metals, forming nitrates and being itself reduced to nitric oxide.
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  • In practice, however, we never have to deal with pure zinc minerals, but with complex mixtures, which must first of all be subjected to mechanical operations, to remove at least part of the gangue, and if possible also of the heavy metallic impurities.
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  • As ores of zinc are usually shipped before smelting from widely separated places - Sweden, Spain, Algiers, Italy, Greece, Australia and the Rocky Mountains region of North America - it is important that they be separated from their mixtures at the mines.
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  • The above theory, coupled with such facts as the variation of the composition of the constant boiling-point fraction with the pressure under which the mixture is distilled, the proportionality of the density of all mixtures to their composition, &c., shows this to be erroneous.
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  • I have gradually come to the use of three mixtures.
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  • Most are nylon and lycra mixtures which improve durability and comfort.
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  • Brazil has never had a "colour line," and there has never been any popular prejudice against race mixtures.
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  • We do not yet know whether such absolute blending is possible or not, or whether all apparent blending is only a more or less minutely subdivided " mosaic " of non-combinable characters of the parents, in fact whether the combinations due to heredity in reproduction are ever analogous to chemical compounds or are always comparable to particulate mixtures.
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  • The manufacturer having prepared his mixture of leaves, proceeds to damp them, pure water alone being used in the United Kingdom, whereas on the Continent and in America certain S mo ki ng sauces are employed, which consist of mixtures of mixtures.
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  • Other race mixtures consist of the zambos (the African-Indian cross), an Asiatic graft upon these various crosses, and an extremely confusing intermixture of the various crosses, for which the Spanish races have descriptive appellations.
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  • The theory of fractional distillation, or the behaviour of liquid mixtures when heated to their boiling-points, is more complex.
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  • For simplicity we confine ourselves to mixtures of two components, in which experience shows that three cases are to be recognized according as the components are (I) completely immiscible, (2) partially miscible, (3) miscible in all proportions.
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  • At one time it was thought that these mixtures of constant boiling-point (an extended list is given in Young's Fractional Distillation) were definite compounds.
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  • All mixtures whose temperature lies above the line ACB are wholly liquid, hence this line is often called the "liquidus "; all mixtures at temperatures below that of the horizontal line through C are wholly solid, hence this line is sometimes called the " solidus," but in more complex cases the solidus is often curved.
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  • A great many mixtures of metals have been examined in the above-mentioned way.
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  • The second category, or "incompletely denaturized" spirits, include numerous mixtures.
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  • Another comparison method much used in submarine cable work is the method of mixtures, originally due to Lord Kelvin and usually called Thomson and Gott's method.
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  • The metal is soluble in solutions of chlorine, bromine, thiosulphates and cyanides; and also in solutions which generate chlorine, such as mixtures of hydrochloric acid with nitric acid, chromic acid, antimonious acid, peroxides and nitrates, and of nitric acid with a chloride.
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  • In some cases definite compounds have been isolated from amalgams which may be regarded as mixtures of one or more of such compounds with mercury in excess.
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  • Acting on a principle quite different from any previously discussed is the capillary hydrometer or staktometer of Brewster, which is based upon the difference in the surface tension and density of pure water, and of mixtures of alcohol and water in varying proportions.
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  • The crystallized salt dissolves very readily in water with a considerable absorption of heat; hence its use in forming "freezing mixtures."
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  • It can be obtained in three different crystalline forms, the transition points of which are 35° C., 83° C. and 125° C. It is easily soluble in water, a considerable lowering of temperature taking place during the operation; on this account it is sometimes used in the preparation of freezing mixtures.
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  • He advanced towards the modern view of elements as the undecomposable constituents of material bodies; and understanding the distinction between mixtures and compounds, he made considerable progress in the technique of detecting their ingredients, a process which he designated by the term "analysis."
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  • It is the constituent of most stomachic mixtures.
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  • Fine aluminium will not burn below the temperature of molten cast iron, and previous experimenters had resorted to heating their mixtures in a crucible.
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  • It is also added to cough mixtures, when the cough is of the dry, painful kind, which serves no purpose, as nothing is expectorated.
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  • The resins which are obtained as natural exudations are in general mixtures of different, peculiar acids, named the resin acids, which dissolve in alkalis to form resin soaps, from which the resin acids are regenerated by treatment with acids.
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  • Gases too dissolve in liquids, while mixtures of various liquids show similar properties.
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  • All these cases of solution are to be distinguished from chemical compounds on the one hand, and from simple mixtures on the other.
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  • This constancy both in freezing point and composition formerly was considered as a characteristic of a pure chemical compound, and hence these mixtures were described as components and given the name of "cryohydrates."
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  • As an example we may take the case of mixtures of naphthalene and 13-naphthol, substances which form solid solutions in each other.
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  • We should expect to find supersolubility curves lying below the solubility curves, and this result has been realized experimentally for the supersolubility curves of mixtures of salol (phenyl salicylate) and betol (/3-naphthol salicylate) represented by the dotted lines of fig.
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  • The various kinds of brown and yellow ochre are mixtures of limonite with clay and other impurities; whilst in umber much manganese oxide is present.
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  • There are several weak points in this reasoning, and a more accurate way of determining the best proportions is to try different mixtures of cement, stones and sand, filling them into different pails of the same size, and then ascertaining, by weighing the pails, which mixture is the densest.
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  • - The principal soils used in gardens, either alone, or mixed to form what are called composts, are - loam, sand, peat, leaf-mould and various mixtures and combinations of these made up to suit the different subjects under cultivation.
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  • Composts are mixtures of the foregoing ingredients in varying proportions, and in combination with manures if necessary, so as to suit particular plants or classes of plants.
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  • The chief point to be borne in mind in making these mixtures is not to combine in the same compost any bodies that are antagonistic in their nature, as for example lime and ammonia.
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  • This led to the search for these, which were not to be found in the bewildering and untested mixtures of the Galenic prescriptions.
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  • 7°, is observed for all mixtures; this has been called the "natural melting-point."
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  • The following mixtures of seeds (stated in pounds per acre) have been recommended for sowing on water-meadows, Messrs Sutton of Reading, after considerable experience, regarding No.
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  • The meadow should be ready by August for sowing with one of the mixtures of grass-seeds already given.
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  • Cements of the Portland type differ in kind from those of the pozzuolanic class; they are not mechanical mixtures of lime and active silica ready to unite under suitable conditions, but consist of definite chemical compounds of lime and silica and lime and alumina, which, when mixed with water, combine therewith, forming crystalline substances of great mechanical strength, and capable of adhering firmly to clean inert material, such as stone and sand.
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  • The supply of materials containing naturally suitable proportions of calcium carbonate and clay being limited, attempts were made to produce artificial mixtures which would serve a similar end.
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  • The term Natural Cements is applied to cements made by burning mixtures of clay and carbonate of lime naturally occurring in approximately suitable proportions.
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  • - Mixtures of animal, vegetable and mineral substances are employed in great variety in the arts for making joints, mending broken china and other objects, &c. A strong cement for alabaster and marble, which sets in a day, may be prepared by mixing 12 parts of Portland cement, 8 of fine sand and 1 of infusorial earth, and making them into a thick paste with silicate of soda; the object to be cemented need not be heated.
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  • Such mixtures are obtained by the action of alkaline hypochlorites on manganous salts, or by suspending manganous carbonate in water and passing chlorine through the mixture.
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  • The form of apparatus usually adopted for the method of mixtures is that of Regnault with slight modifications, and figures and descriptions are given in all the text-books.
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  • No Doubt There Must Be Approximate Relations Between The Atomic And Molecular Heats Of Similar Elements And Compounds, But Considering The Great Variations Of Specific Heat With Temperature And Physical State, In Alloys, Mixtures Or Solutions, And In Allotropic Or Other Modifications, It Would Be Idle To Expect That The Specific Heat Of A Compound Could Be Accurately Deduced By Any Simple Additive Process From That Of Its Constituents.
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  • (2) `Erubin (" mixtures " or amalgamations), on legitimate methods of avoiding inconvenient restrictions on the Sabbath.
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  • It is maintained that one or other of these mixtures is absolutely necessary to enable Europeans to continue long to flourish in the tropics.
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  • This estimate is unquestionably conservative, for there has been no large influx of European blood to counterbalance the race mixtures of earlier times.
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  • Great Britain is now her best customer, and Brazil takes a small quantity for milling mixtures.
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  • Only a very small percentage of the population which numbered 805,687 in 1890, and 849,127 in 1900, is of pure European origin, the great majority being of the coloured races and their mixtures with the whites.
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  • The deposits formed by evaporation from these lakes and marshes or salines, are mixtures of borates, various alkaline salts (sodium carbonate, sulphate, chloride), gypsum, &c. In the mud of the lakes and in the surrounding marshy soil fine isolated crystals of borax are frequently found.
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  • In some cases diffusion takes place to a limited extent, after which the resulting mixtures do not mix with each other.
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  • Considerable differences occur in these latter respects, however, and interesting results were obtained by Beyerinck with mixtures of species possessing different powers of enzyme action as regards carbohydrates.
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  • The other colours result from various mixtures of these four, and are infinite in number.
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  • The minerals embolite, megabromite and microbromite, occurring in Chile, are variable mixtures of the chloride and bromide.
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  • A few months after his return, through Germany, to London in 1815, he was induced to take up the question of constructing a miner's safety lamp. Experiments with samples of fire-damp sent from Newcastle soon taught him that "explosive mixtures of mine-damp will not pass through small apertures or tubes"; and in a paper read before the Royal Society on the 9th of November he showed that metallic tubes, being better conductors of heat, were superior to glass ones, and explained that the heat lost by contact with a large cooling surface brought the temperature of the first portions of gas exploded below that required for the firing of the other portions.
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  • In subsequent receipts saltpetre and turpentine make their appearance, and the modern "carcass composition," containing sulphur, tallow, rosin, turpentine, saltpetre and crude antimony, is a representative of the same class of mixtures, which became known to the Crusaders as Greek fire but were more usually called wildfire.
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  • For in such mixtures, the component colours appear not, but, by their mutual allaying each other constitute a midling colour."
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  • The historical development of the chemistry of gases - pneumatic chemistry - is treated in the article Chemistry; the technical analysis of gaseous mixtures is treated below under Gas Analysis.
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  • Calcium ferrite, magnesium ferrite and zinc ferrite, ROFe203(R=Ca, Mg, Zn), are obtained by intensely heating mixtures of the oxides; magnesium ferrite occurs in nature as the mineral magnoferrite, and zinc ferrite as franklinite, both forming black octahedra.
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  • The natural oils and fats are mixtures of at least two or three different triglycerides, the most important of which are tristearin, tripalmitin, C3H5(0'C16H310)3 and triolein, C 3 H 5 (0C1811330)3.
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  • This is not only due to the fact that they are mixtures of several glycerides, but also that even pure glycerides, such as tristearin, exhibit two melting-points, a so-called "double melting-point," the triglycerides melting at a certain temperature, then solidifying at a higher temperature to melt again on further heating.
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  • The oils are usually contained in special cells, glands, cavities, or canals within the plants either as such or intermixed with resinous substances; in the latter case the mixtures form oleo-resins, balsams or resins according as the product is viscid, or solid and hard.
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  • Plasma gases include argon, hydrogen, nitrogen and mixtures thereof, as well as air and oxygen.
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  • The projects investigated biopolymer mixture models and increased understanding of the nature of particles in biopolymer mixtures.
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  • These experiments provide an atomic-scale basis for descriptions of manganites as mixtures of electronically and structurally distinct phases.
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  • Two of the four HSC mixtures contained silica fume.
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  • The use of mixtures of pure bacterial cultures as an alternative inoculum to rumen fluid in the in vitro gas production technique.
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  • Lettuce variety mixtures were used to investigate their value for control of downy mildew.
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  • Theoretical models of shell and tube boilers suitable for boiling two-phase mixtures are under development.
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  • This property has been used to separate racemic mixtures.
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  • Various cough mixtures on the market do the trick for different people.
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  • Pizza Hut came home for lunch; Steve took the girls shopping and they bought pizza, pasta, ice cream and dolly mixtures.
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  • Reactions occurred but despite many efforts only complex mixtures of hexane soluble phosphorus containing compounds could be obtained that proved impossible to identify.
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  • Dear Martin, I have just recently started work to understand and model acoustic attenuation in gas mixtures containing water vapor.
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  • He visited London and Paris in 1771, selling lovephiltres, elixirs of youth, mixtures for making ugly women beautiful, alchemistic powders, &c., and deriving large profits from his trade.
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  • Lignified tissues are colored yellow by aniline sulphate or aniline chloride, violet with phloroglucin and hydrochloric acid, and characteristic reactions are also given by mixtures containing phenol, indol, skatol, thailin, sulphate, &c. (see Zimmermanns Microtechnique).
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  • The water in a soap is rarely directly determined; when it is, the soap, in the form of shavings, is heated to 105° C. until the weight is constant, the loss giving the amount of ' " Soap powders " and " soap extracts " are powdered mixtures of soaps, soda ash or ordinary sodium carbonate.
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  • Wagner's orthodox contemporaries regarded such mixtures of key as sheer nonsense; and it would seem that the rank and file of his imitators agree with that view, since they either plagiarize Wagner's actual progressions or else produce such mixtures with no vividness of key-colour and little attempt to follow those melodic trains of thought by which Wagner makes sense of them.
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  • Brazil has never had a " colour line," and there has never been any popular prejudice against race mixtures.
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  • Their number is further increased by spatial inversion of the dicarboxylic acids formed on oxidation, followed by reduction; for example: d- and /-glucose yield d-and l-gulose; and also by Lobry de Bruyn and Van Ekenstein's discovery that hexoses are transformed into mixtures of their isomers when treated with alkalis, alkaline earths, lead oxide, &c.
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  • In practice, however, we never have to deal with pure zinc minerals, but with complex mixtures, which must first of all be subjected to mechanical operations, to remove at least part of the gangue, and if possible also of the heavy metallic impurities (see ORE-Dressing).
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  • A coordination of the results obtained on the distillation of mixtures of this nature with the introduction of certain theoretical considerations led to the formation of three groups distinguished by the relative solubilities of the vapours in the liquid components.
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  • It can be obtained in three different crystalline forms, the transition points of which are 35° C., 83° C. and 125° C. It is easily soluble in water, a considerable lowering of temperature taking place during the operation; on this account it is sometimes used in the preparation of freezing mixtures.
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  • Troostite and Sorbite, indeed, seem to be chiefly very finely divided mixtures of ferrite and cementite, and it is probably because of this fineness that sorbitic steel has its remarkable combination of strength and elasticity with ductility which fits it for resisting severe vibratory and other dynamic stresses, such as those to which rails and shafting are exposed.
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  • 7°, is observed for all mixtures; this has been called the "natural melting-point."
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  • The term is often applied to adhesive mixtures employed to unite objects or parts of objects (see below), but in engineering, when used without qualification, it means Portland cement, its modifications and congeners; these are all hydraulic cements, i.e.
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  • Tonally, the Victorian organs are robust, with at least two complete manual choruses and mainly quint mixtures.
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  • Blending in the shadows passing mixtures of unknown plants, Receiving sudden pain when attacked by red biting ants.
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  • The two mixtures of shredder residues differed both in their composition of solids and in the amount of moisture.
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  • First cut grass silage or whole crop mixtures can also be used.
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  • Common sorrel seed has occurred as a contaminant of grass seed mixtures, crop seeds and in hay.
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  • His swell mixtures often had a tierce rank in the tenor octave but this was a hangover of the 18th Century English organ.
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  • Dawn visited women farmers from whom she collected mixtures in 1991 to discuss changes in mixture composition and reasons for varietal selection.
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  • Some of the most popular drinks are simple mixtures of vodka and fruit juice with ice and a garnish.
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  • Tea tree oil antifungal mixtures can be made at home with pure tea tree oil and either a carrier oil, baking soda, or distilled water.
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  • Moxibustion incorporates herbal mixtures, believed to stimulate chi (a positive force).
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  • These are great mixtures for cleaning and disinfecting bathrooms and tackling grease in kitchens.
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  • The company uses individual herbs and herbal mixtures to create pleasant aromatherapy products.
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  • Ranging from premium paints to environmentally friendly mixtures, there is a line to fit every need.
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  • In this era of flashy heavy makeup, she began to create her own mixtures to compliment her average brown looks.
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  • Describing a smell is simply not an easy procedure, especially given the large mixtures of ingredients in most standard perfumes.
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  • Bored with the hum drum formulations of current cosmetics, Vincent Longo began creating his own color mixtures in 1994.
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  • There's no discernible difference in taste or quality among yeasts grown in different mixtures.
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  • Use a wooden spoon or spatula to stir the two mixtures until combined.
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  • Mashed banana: About 1/4 cup of mashed banana (half a banana) is similar to the texture of a lightly beaten egg, can help some mixtures hold their structures, and adds good flavor to final products.
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  • Remember that none of these mixtures should be sprayed directly onto your soil over a large area.
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  • These mixtures are heated in gas-fired furnaces.
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  • Look for 1 x 3-inch mosaics, hexagons and mixtures of honed slate and glass for a striking look.
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  • The experts at this company will help you assess your needs and make recommendations on forage mixtures for your livestock.
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  • Rice and grain blends are mixtures of various types of organic rice, herbs and spices, and grains.
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  • Boxed and ready to cook, these mixtures add variety and convenience to your organic table.
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  • By fixing screens, taking care of clutter, and using your homemade organic home pest control mixtures you will see results eventually.
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  • They carry many types of grains and mixtures as well.
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  • They have unique mixtures as well as single seed varieties.
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  • Starwest has Kosher, organic seeds in mixtures as well as single seed packs.
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  • Buying a juicer enables you to create your own whole food juice mixtures for optimum nutrition.
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  • Walter began experimenting with various juice mixtures and started making the rounds along the railways taking orders for his new juice.
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  • Codeine is often effective in relieving severe coughs and is a common ingredient in prescription cough mixtures.
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  • Special PKU dietary mixtures or formulas are usually obtained from medical clinics or pharmacies.
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  • About 65 percent are capillary hemangiomas (strawberry marks), 15 percent are cavernous (deep) hemangiomas, and the rest are mixtures.
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  • Aromatherapy and homeopathic practitioners also use herb grinders to create fragrant or medicinal herbal mixtures to help improve the health and wellness of their patients.
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  • The controls include a three-speed selector switch for alternating the speed of the mixer and a pulse switch for pulsing thicker mixtures.
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  • A tamper tool is also included for helping to guide larger pieces through very thick mixtures.
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  • White rice flour is a common ingredient in all-purpose gluten-free flour mixtures.
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  • Keeping up a changing handbag market, her newly released collections sport eclectic mixtures of sleek elegance and fun frills.
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  • You can find pink, white, black, charcoal and even mixtures of colors like charcoal/black or pink/white.
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  • A person can choose whichever mixtures they want - as long as the artist can successfully pull it off in the ink, you can have a very unique symbol of your personality and what you stand for.
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  • This ink is formulated to glow under a UV light without any of the harmful affects of other chemical mixtures.
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  • Both mixtures need to be within five degrees of each other and near 110 degrees when they are combined.
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  • When your two mixtures are around 110 degrees, or whatever temperature your recipe calls for, add the lye mixture to the fat mixture, being careful not to spill.
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  • In one case, indeed, the average produce by mixed minerals and nitrogenous manure was more than that by the annual application of farmyard manure; and in seven out of the ten cases in which such mixtures were used the average yield per acre was from over two to over eight bushels more than the average yield of the United Kingdom (assuming this to be about twenty-eight bushels of 60 lb per bushel) under ordinary rotation.
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  • Experiments upon the growth of barley for fifty years in succession on rather heavy ordinary arable soil resulted in showing that the produce by mineral manures alone is larger than that without manure; that nitrogenous manures alone give more produce than mineral manures alone; and that mixtures of mineral and nitrogenous manure give much more than either used alone - generally twice, or more than twice, as much as mineral manures alone.
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  • The water in a soap is rarely directly determined; when it is, the soap, in the form of shavings, is heated to 105° C. until the weight is constant, the loss giving the amount of ' " Soap powders " and " soap extracts " are powdered mixtures of soaps, soda ash or ordinary sodium carbonate.
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  • He emphasized that the practical training should include (1) the qualitative and quantitative analysis of mixtures, (2) the preparation of substances according to established methods, (3) original research - a course which has been generally adopted.
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  • This law states that: - gases combine with one another in simple proportions by volume, and the volume of the product (if gaseous) has a simple ratio to the volumes of the original mixtures; in other words, the densities of gases are simply related to their combining weights.
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  • A sublimate may be formed of: sulphur - reddish-brown drops, cooling to a yellow to brown solid, from sulphides or mixtures; iodine - violet vapour, black sublimate, from iodides, iodic acid, or mixtures; mercury and its compounds - metallic mercury forms minute globules, mercuric sulphide is black and becomes red on rubbing, mercuric chloride fuses before subliming, mercurous chloride does not fuse, mercuric iodide gives a yellow sublimate; arsenic and its compounds - metallic arsenic gives a grey mirror, arsenious oxide forms white shining crystals, arsenic sulphides give reddish-yellow sublimates which turn yellow on cooling; antimony oxide fuses and gives a yellow acicular sublimate; lead chloride forms a white sublimate after long and intense heating.
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  • This subject is treated in the article Solution; for the properties of liquid mixtures reference should also be made to the article Distillation.
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  • The conversion of nitrogen into ammonia by electricity has received much attention, but the commercial aspect appears to have been first worked out by de Hemptinne in 1900, who used both the spark and silent discharge on mixtures of hydrogen and nitrogen, and found that the pressure and temperature must be kept low and the spark gap narrow.
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  • But many hold that his letters and essays are finer contributions to pure literature, and that on these exquisite mixtures of wisdom, pathos, melody and humour his fame is likely to be ultimately based.
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  • Tschermak, in 1878, regarded them as isomorphous mixtures of the following fundamental molecules: H 2 KA1 3 (SiO 4) 3, corresponding with muscovite; Mg 6 Si 3 0 12, a hypothetical polymer of olivine; and H4S15012, a hypothetical silicic acid.
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  • The use of the first two is restricted, as they are suited only for galena ores or mixtures of galena and carbonate, which contain not less than 58% lead and not more than 4% silica; further, ores to be treated in the ore-hearth should run low in or be free from silver, as the loss in the fumes is excessive.
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  • Bradford was at one time the centre of the clothing industry in the west of England, and was especially famous for its broadcloths and mixtures, the waters of the Avon being especially favourable to the production of good colours and superior dyes.
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  • In all such magnetizable alloys the presence of manganese appears to be essential, and there can be little doubt that the magnetic quality of the mixtures is derived solely from this component.
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  • The alum schists employed in the manufacture of alum are mixtures of iron pyrites, aluminium silicate and various bituminous substances, and are found in upper Bavaria, Bohemia, Belgium and Scotland.
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  • The application of physiology to the explanation of diseases, and thus to practice, was chiefly by the theory of the temperaments or mixtures which Galen founded upon the Hippocratic doctrine of humours, but developed with marvellous and fatal ingenuity.
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  • In coal-mines we have to deal with " fire-damp " or marsh gas, and with inflammable coal dust, which form explosive mixtures with air and frequently lead to disastrous explosions resulting in great loss of life.
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  • They pass through a viscous stage in cooling from a state of fluidity; they develop effects of colour when the glass mixtures are fused with certain metallic oxides; they are, when cold, bad conductors both of electricity and heat, they are easily fractured by a blow or shock and show a conchoidal fracture; they are but slightly affected by ordinary solvents, but are readily attacked by hydrofluoric acid.
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  • Long experience has fixed the mixtures, so far as ordinary furnace temperatures are concerned, which produce the varieties of glass in common use.
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  • The essential materials of which these mixtures are made are, for English flint glass, sand, carbonate of potash and red lead; for plate and sheet glass, sand, carbonate or sulphate of soda.
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  • It is convenient to treat these glasses as " normal " glasses, but they are in reality mixtures of silicates, and cannot rightly be regarded as definite chemical compounds or represented by definite chemical formulae.
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  • Glass mixtures containing lead are melted in covered, beehive-shaped crucibles holding from 12 to 18 cwt.
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  • Numerous sulphonic acids of anthracene are known, a monosulphonic acid being obtained with dilute sulphuric acid, whilst concentrated sulphuric acid produces mixtures of the anthracene disulphonic acids.
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  • The population of Peru is mixed, including whites, Indians, Africans, Asiatics, and their mixtures and sub-mixtures.
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  • The distillation of completely miscible mixtures is the most common practically and the most complex theoretically.
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  • On distilling such a mixture pure A will come over first, followed by mixtures in which the quantity of B continually increases; consequently by a sufficient number of distillations A and B can be completely separated.
    1
    1
  • Dry distillation is extremely wasteful even when definite substances or mixtures, such as calcium acetate which yields acetone, are dealt with, valueless by-products being obtained and the condensate usually requiring much purification.
    1
    1
  • Dephlegmation of the vapours arising from such mixtures as coaltar fractions, petroleum and the "wash" of the spirit industry, is very important, and many types of apparatus are employed in order to effect a separation of the vapours.
    1
    1
  • It may conveniently be extended to similar mixtures of sulphur and selenium or tellurium, of bismuth and sulphur, of copper and cuprous oxide, and of iron and carbon, in fact to all cases in which substances can be made to mix in varying proportions without very marked indication of chemical action.
    6
    6
  • In the case of a pure substance, and of a certain small class of mixtures, there is no further fall in temperature until the substance has become completely solid, but, in the case of most mixtures, after the freezing-point has been reached the temperature soon begins to fall again, and as the amount of solid increases the temperature becomes lower and lower.
    1
    1
  • If we determine the freezing-points of a number of mixtures varying in composition from pure A to pure B, we can plot the freezing-point curve.
    1
    1
  • Dr Bones of Montpellier constructed a hydrometer which was based upon the results of his experiments on mixtures of alcohol and water.
    0
    1
  • Numerous hydrides are known; heated with red phosphorus and hydriodic acid the hydrocarbon yields mixtures of hydrides of composition C10H10 to C10H20.
    0
    1
  • Specially produced mixtures of CO 2 and trace contaminants were obtained from a specialist gas company.
    0
    1
  • Venetian white, Hamburg white and Dutch white are mixtures of one part of white lead with one, two and three parts of barium sulphate respectively.
    0
    2
  • A certain proportion of soda ash (carbonate of soda) is also used in some works in sheet-glass mixtures, while " decolorizers " (substances intended to remove or reduce the colour of the glass) are also sometimes added, those most generally used being manganese dioxide and arsenic. Another essential ingredient of all glass mixtures containing sulphate of soda is some form of carbon, which is added either as coke, charcoal or anthracite coal; the carbon so introduced aids the reducing substances contained in the atmosphere of the furnace in bringing about the reduction of the sulphate of soda to a condition in which it combines more readily with the silicic acid of the sand.
    0
    2
  • Explosive mixtures of marsh-gas and air may be fired by an unprotected light.
    1
    4
  • Of mineral constituents, whether used alone or in mixture with nitrogenous manures, phosphates are much more effective than mixtures of salts of potash, soda and magnesia.
    2
    6
  • 9 illustrates the first case: the ordinates represent specific volumes, and the abscissae denote the composition of isomorphous mixtures of ammonium and potassium dihydrogen phosphates, which mutually take one another up to the extent of 20% to form homogeneous crystals.
    1
    5
  • These discoveries of Geoffroy and Scheele formed the basis of Chevreul's researches by which he established the constitution of oils and the true nature of soap. In the article Oils it is pointed out that all fatty oils and fats are mixtures of glycerides, that is, of bodies related to the alcohol glycerin C 3H5(OH)3 i and some fatty acid such as palmitic acid (C 16 H 31 0 2)H.
    6
    18