This website uses cookies to ensure you get the best experience. Learn more

acetate

acetate

acetate Sentence Examples

  • Tartaric acid, which is sometimes present in large quantities as an adulterant in commercial citric acid, may be detected in the presence of the latter, by the production of a precipitate of acid potassium tartrate when potassium acetate is added to a cold solution.

    6
    3
  • of acetate of lead in a little water, then 1 oz.

    4
    5
  • Phenyl acetate, C 6 H 5.

    2
    1
  • In this case, the precipitate is dissolved in as little as possible hydrochloric acid and boiled with ammonium acetate, acetic acid and ferric chloride.

    2
    1
  • In this case, the precipitate is dissolved in as little as possible hydrochloric acid and boiled with ammonium acetate, acetic acid and ferric chloride.

    2
    1
  • With sodium ethylate in ethyl acetate solution it forms the sodium derivative of benzoyl acetone, from which benzoyl acetone, C6H5.CO.CH2.CO.CH3, can be obtained by acidification with acetic acid.

    2
    2
  • With sodium ethylate in ethyl acetate solution it forms the sodium derivative of benzoyl acetone, from which benzoyl acetone, C6H5.CO.CH2.CO.CH3, can be obtained by acidification with acetic acid.

    2
    2
  • It is best to commence the electrolytic thickening in a silver acetate bath.

    1
    1
  • This hydroxide is soluble in well cooled acids, forming solutions which contain cobaltic salts, one of the most stable of which is the acetate.

    0
    0
  • by distilling ammonium acetate.

    0
    0
  • ethylene dibromide) with silver acetate or with potassium acetate and alcohol, the esters so produced being then hydrolysed with caustic alkalis, thus: C 2 H 4 Br 2 + C2H302 Ag-*C2H4(O C2H30)2->C2H4(OH)2+2K C2H302 by the direct union of water with the alkylen oxides; by oxidation of the olefines with cold potassium permanganate solution (G.

    0
    0
  • chim., 18 59 [3], 55, p. 400) from ethylene dibromide and silver acetate.

    0
    0
  • With fused potash it forms potassium oxalate and acetate.

    0
    0
  • By his own investigations and those of Sir Edward Frankland it was proved that the radical methyl existed in acetic acid; and by the electrolysis of sodium acetate, Kolbe concluded that he had isolated this radical; in this, however, he was wrong, for he really obtained ethane, C 2 H 6, and not methyl, CH 3.

    0
    0
  • 187-I° Heptyl acetate.

    0
    0
  • If an aqueous solution of methyl acetate be allowed to stand, a slow decomposition goes on.

    0
    0
  • Let us allow dilute sodium acetate to react with dilute hydrochloric acid.

    0
    0
  • The ammonium salt is then converted into the lead salt by precipitation with lead acetate and the lead salt decomposed by sulphuretted hydrogen.

    0
    0
  • The corresponding hydrate, Pb(OH)2, is obtained as a white crystalline precipitate by adding ammonia to a solution of lead nitrate or acetate.

    0
    0
  • Commercial red lead is frequently contaminated with this oxide, which may, however, be removed by repeated digestion with lead acetate.

    0
    0
  • By the action of the acetic acid and atmospheric oxygen, the lead is converted superficially into a basic acetate, which is at once decomposed by the carbon dioxide, with formation of white lead and acetic acid, which latter then acts de novo.

    0
    0
  • Ammonium sulphide blackens it, and it is soluble in solution of ammonium acetate, which distinguishes it from barium sulphate.

    0
    0
  • The normal ortho-phosphate, Pb3(P04)2, is a white precipitate obtained by adding sodium phosphate to lead acetate; the acid phosphate, PbHPO 4, is produced by precipitating a boiling solution of lead nitrate with phosphoric acid; the pyrophosphate and meta-phosphate are similar white precipitates.

    0
    0
  • Lead acetate, Pb(C2H302)2.3H20 (called "sugar" of lead, on account of its sweetish taste), is manufactured by dissolving massicot in aqueous acetic acid.

    0
    0
  • Alcoholic solutions of the alkalis also produce much nitrite along with some formate and acetate.

    0
    0
  • The latter reacts with chlorine to give silicon nonyl-chloride Si(C2H5)3 C2H4C1, which condenses with potassium acetate to give the acetic ester of silicon nonyl alcohol from which the alcohol (a camphor-smelling liquid) may be obtained by hydrolysis.

    0
    0
  • Wohl forms the oxime and converts it into an acetylated nitrile by means of acetic anhydride and sodium acetate; ammoniacal silver nitrate solution removes hydrocyanic acid and the resulting acetate is hydrolysed by acting with ammonia to form an amide, which is finally decomposed with sulphuric acid.

    0
    0
  • In the case of acetate the precipitation is quite complete; from a sulphate or chloride solution the greater part of the metal goes into the precipitate; in the presence of a sufficiency of free HC1 the metal remains dissolved; sulphide of ammonium precipitates the metal completely, even in the presence of ammonium salts and free ammonia.

    0
    0
  • Those treated here are the sulphate, oxide, carbonate, oleate and acetate.

    0
    0
  • Wallach, Ber., 1881, 14, P. 421); by the action of reducing agents on nitroparaffins; by the action of zinc and hydrochloric acid on aldehyde ammonias (German Patent 73,812); by the reduction of the phenylhydrazones and oximes of aldehydes and ketones with sodium amalgam in the presence of alcohol and sodium acetate (J.

    0
    0
  • Soc., 1901, 79, p. 828) has resolved benzyl-allyl-phenyl-methylamine iodide by boiling with silver d-camphorsulphonate in a nearly anhydrous mixture of acetone and ethyl acetate.

    0
    0
  • 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.

    0
    0
  • Carbon monoxide takes part in the syntheses of sodium formate from sodium hydrate, or soda lime (at 200 0 -2 20 0), and of sodium acetate and propionate from sodium methylate and sodium ethylate at 160 0 -200°.

    0
    0
  • If a solution of potassium acetate be electrolysed the products are ethane, carbon dioxide, potash and hydrogen; in a similar manner, normal potassium succinate gives ethylene, carbon dioxide, potash and hydrogen; these reactions may be represented: CH 3 �CO 2;K CH 3 CO 2 K' CH 2 �CO 2 1K CH 2 CO 2 K' --> I + + I I -i iI + CH 3 �CO 21 K CH 3 CO 2 K' CH 2 �CO 2 iK CH 2 CO 2 K' By electrolysing a solution of potassium ethyl succinate, KO 2 C�(CH 2) 2 CO 2 C 2 H 5, the KO 2 C� groups are split off and the two residues �(CH 2) 2 CO 2 C 2 H 5 combine to form the ester (CH2)4(C02C2H5)2.

    0
    0
  • In the same way, by electrolysing a mixture of a metallic salt and an ester, other nuclei may be condensed; thus potassium acetate and potassium ethyl succinate yield CH 3 * CH2 � CH2 � C02 C2H5.

    0
    0
  • Weith, Ber., 1880, 13, 1300); or in the form of its acetyl derivative by heating /3-naphthol with ammonium acetate to 270-280° C. It forms odourless, colourless plates which melt at 111-112° C. It gives no colour with ferric chloride.

    0
    0
  • The acetate and the citrate are valuable mild diuretics in Bright's disease and in feverish conditions, and by increasing the amount of urine diminish the pathological fluids in pleuritic effusion, ascites, &c. In tubal nephritis they aid the excretion of fatty casts.

    0
    0
  • It can be prepared by the reduction of phenyl propiolic acid with zinc and acetic acid, by heating benzal malonic acid, by the condensation of ethyl acetate with benzaldehyde in the presence of sodium ethylate or by the so-called "Perkin reaction"; the latter being the method commonly employed.

    0
    0
  • In making the acid by this process benzaldehyde, acetic anhydride and anhydrous sodium acetate are heated for some hours to about 180 C., the resulting product is made alkaline with sodium carbonate, and any excess of benzaldehyde removed by a current of steam.

    0
    0
  • It is detected by heating with ordinary alcohol and sulphuric acid, which gives rise to acetic ester or ethyl acetate, recognized by its" fragrant odour; or by heating with arsenious oxide, which forms the pungent and poisonous cacodyl oxide.

    0
    0
  • Ferrous and ferric acetates are used as mordants; normal lead acetate is known in commerce as sugar of lead; basic copper acetates are known as verdigris.

    0
    0
  • In the form of a chromate, it may be determined by precipitation, in acetic acid solution, with lead acetate; the lead chromate precipitate collected on a tared filter paper, well washed, dried at loo° C. and weighed; or the chromate may be reduced by means of sulphur dioxide to the condition of a chromic salt, the excess of sulphur dioxide expelled by boiling, and the estimation carried out as above.

    0
    0
  • Chromous sulphate, CrS04 7H 2 0, isomorphous with ferrous sulphate, results on dissolving the metal in dilute sulphuric acid or, better, by dissolving chromous acetate in dilute sulphuric acid, when it separates in blue crystals on cooling the solution.

    0
    0
  • On pouring a solution of chromous chloride into a saturated solution of sodium acetate, a red crystalline precipitate of chromous acetate is produced; this is much more permanent in air than the other chromous salts and consequently can be used for their preparation.

    0
    0
  • Cyanogen compounds of chromium, analogous to those of iron, have been prepared; thus potassium chromocyanide, K 4 Cr(CN) 6.2H 2 0, is formed from potassium cyanide and chromous acetate; on exposure to air it is converted into the chromicyanide, K 3 Cr(CN) 6, which can also be prepared by adding chromic acetate solution to boiling potassium cyanide solution.

    0
    0
  • Hewitt has also attacked the problem by brominating the oxyazobenzenes, and has shown that when the hydrobromic acid produced in the reaction is allowed to remain in the system, a brombenzene-azo-phenol is formed, whilst if it be removed (by the addition of sodium acetate) bromination takes place in the phenolic nucleus; consequently the presence of the mineral acid gives the azo compound a pseudo-quinonoid character, which it does not possess if the mineral acid be removed from the sphere of the reaction.

    0
    0
  • Heated with anhydrous sodium acetate and acetic anhydride it gives cinnamic acid; with ethyl bromide and sodium it forms triphenyl-carbinol (C 6 H 5) 3 C OH; with dimethylaniline and anhydrous zinc chloride it forms leuco-malachite green C6H5CH[C6H4N(CH3)2]2; and with dimethylaniline and concentrated hydrochloric acid it gives dimethylaminobenzhydrol, C 6 H 5 CH(OH)C 6 H 4 N(CH 3) 2.

    0
    0
  • Trans., 1861, p. 163); the first named decomposing aluminium acetate (from lead acetate and aluminium sulphate) with boiling water, the latter dialysing a solution of the basic chloride (obtained by dissolving the hydroxide in a solution of the normal chloride).

    0
    0
  • Acetyl acetone, CH 3 CO CH 2 CO CH 3, may be prepared by the action of aluminium chloride on acetyl chloride, or by condensing ethyl acetate with acetone in the presence of sodium (L.

    0
    0
  • Phys., 1862 (3), 65, p. 385 et seq.) have shown in the case of the formation of ethyl acetate from ethyl alcohol and acetic acid, a point of equilibrium is reached, beyond which the reacting system cannot pass, unless the system be disturbed in some way by the removal of one of the products of the reaction.

    0
    0
  • Ethyl acetate (acetic ether), CH3.002C2H5, boils at 75° C. Isoamylisovalerate, C4H9 C02C5Hn, boils at 196° C. and has an odour of apples.

    0
    0
  • p. 721) obtained the values 9.113 from analyses of beryllium acetonyl-acetate and beryllium basic acetate.

    0
    0
  • A higher hydrated oxide, CeO 3 xH 2 O, is formed by the interaction of cerous sulphate with sodium acetate and hydrogen peroxide (Lecoq de Boisbaudran, Comptes rendus, 1885, loo, p. 605).

    0
    0
  • of the acetate to i fl.

    0
    0
  • Besides the dryers already mentioned, lead acetate, manganese borate, manganese dioxide, zinc sulphate and other bodies are used.

    0
    0
  • y-Oxyacids are formed when aldehydes are heated with sodium succinate and sodium acetate.

    0
    0
  • Geuther, who showed that the chief product of the action of sodium on ethyl acetate was a sodium compound of composition C6H903Na, which on treatment with acids gave a colourless, somewhat oily liquid of composition C6H1003.

    0
    0
  • The substance is best prepared by drying ethyl acetate over calcium chloride and treating it with sodium wire, which is best introduced in one operation; the liquid boils and is then heated on a water bath for some hours, until the sodium all dissolves.

    0
    0
  • Wanklyn have shown that pure ethyl acetate free from alcohol will not react with sodium to produce aceto-acetic ester.

    0
    0
  • Scheele's green is a basic copper arsenite; Schweinfurt green, an aceto-arsenite; and Casselmann's green a compound of cupric sulphate with potassium or sodium acetate.

    0
    0
  • The ketenes are usually obtained by the action of zinc on ethereal or ethyl acetate solutions of halogen substituted acid chlorides or bromides.

    0
    0
  • Two very old remedies for fever are acetate of ammonia and nitrous ether.

    0
    0
  • Now we can see the reason for their administration, because the nitrous ether, consisting chiefly of ethyl nitrite, dilates the superficial vessels and thus allows greater escape of heat from the surface; while acetate of ammonia, by acting as a diaphoretic and stimulating the secretion of sweat, increases the loss of heat by evaporation.

    0
    0
  • It does not form a precipitate with lead acetate solution, as the isomeric pyrocatechin does.

    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 lead sulphate, obtained as described above and dissolved in ammonium acetate, is acidulated with acetic acid diluted with hot water and heated to boiling-point.

    0
    0
  • It is standardized by dissolving a weighed amount of lead sulphate in ammonium acetate and proceeding as described above.

    0
    0
  • When potassium iodide is added to a solution of cupric acetate, the reaction (Cu(C 2 H 3 0 2) 2 + 2KI= Cul + 2K(C 2 H 3 0 2) + I takes place; that is, for each atom of copper one atom of iodine is liberated.

    0
    0
  • The amount manufactured in 1906-1907 was 346 lb of morphine hydrochlorate, 12 lb of the acetate and 61 lb of codeia.

    0
    0
  • On the large scale it is prepared by the dry distillation of calcium acetate (CH3C02)2Ca= CaCO3 +CH3COCH3.

    0
    0
  • The barium carbonate used in the process acts as a contact substance, since the temperature at which the operation is carried out is always above the decomposition point of barium acetate.

    0
    0
  • 6, p. 329); and by heating piperidine in acetic acid solution with silver acetate (J.

    0
    0
  • It is oxidized to pyridine by heating with concentrated sulphuric acid to 300° C., or with nitrobenzene to 250° C., or with silver acetate to 180° C. Being an imide it readily yields a nitroso derivative, and N-alkyl and acidyl derivatives.

    0
    0
  • To prepare it olive oil is saponified with potash, and lead acetate added; the lead salts are separated, dried, and extracted with ether, which dissolves the lead oleate; the solution is then treated with hydrochloric acid, the lead chloride filtered off, the liquid concentrated, and finally distilled under diminished pressure.

    0
    0
  • Arsenides, Arsenites, &c. - Several iron arsenides occur as minerals; lolingite, FeAs 2, forms silvery rhombic prisms; mispickel or arsenical pyrites, Fe2AsS2, is an important commercial source of arsenic. A basic ferric arsenite, 4Fe2O3 As2O3.5H 2 O, is obtained as a flocculent brown precipitate by adding an arsenite to ferric acetate, or by shaking freshly prepared ferric hydrate with a solution of arsenious oxide.

    0
    0
  • Liquor ferri acetatis, solution of ferric acetate.

    0
    0
  • The arseniuretted hydrogen produced is passed through a tube containing lead acetate paper and soda-lime, and finally through a narrow glass tube, constricted at various points, and heated by a very small flame.

    0
    0
  • Arsenic compounds can be detected in the dry way by heating in a tube with a mixture of sodium carbonate and charcoal when a deposit of black amorphous arsenic is produced on the cool part of the tube, or by conversion of the compound into the trioxide and heating with dry sodium acetate when the offensive odour of the extremely poisonous cacodyl oxide is produced.

    0
    0
  • On distillation of equal parts of dry potassium acetate and arsenious oxide, a colourless liquid of unbearable smell passes over, which is spontaneously inflammable and excessively poisonous.

    0
    0
  • Thus amyl acetate is used as an imitation of the jargonelle-pear flavour; amyl valerate replaces apple flavour, and a mixture of ethyl and propyl butyrates yields the so-called pine-apple flavour.

    0
    0
  • As an illustration of the extent to which this part of the industry suffers from the climate, it may be stated that oil from lavender plants grown in England never produces more than 7 to 10% linalool acetate, which gives the characteristic scent to lavender oil, whilst oil from lavender grown in the south of France frequently yields as much as 35% of the ester.

    0
    0
  • The proof that this is due mainly to climatic influences is furnished by the fact that Mitcham lavender transplanted to France produces an oil which year by year approximates more closely in respect of its contents of linalool acetate to the product of the French plant.

    0
    0
  • - This group includes the sulphates of sodium, potassium and magnesium, the acetate and tartrate of potash, citrate of magnesium, sodium phosphate, sodium tartrate and similar salts.

    0
    0
  • Gum arabic is not precipitated from solution by alum, stannous chloride, sulphate or nitrate of copper, or neutral lead acetate; with basic lead acetate it forms a white jelly, with ferric chloride it yields a stiff clear gelatinoid mass, and its solutions are also precipitated by borax.

    0
    0
  • Its solution is not thickened by borax, and is precipitated by neutral lead acetate; and dilute sulphuric acid converts it into d-glucose.

    0
    0
  • Part of it only is soluble in water, and that resembles gummic acid in being precipitated by alcohol and ammonium oxalate, but differs from it in giving a precipitate with neutral lead acetate and none with borax.

    0
    0
  • Each pack contains 168 tablets, each containing 50 mg cyproterone acetate.

    0
    0
  • Prices are published on the machine, which includes the acetate.

    0
    0
  • Those who used an acetate for their first graph can compare by placing this over the second graph.

    0
    0
  • Meanwhile, glatiramer acetate has no known effects on menstruation.

    0
    0
  • They also made light murals using an overhead projector, collected objects and colored acetate.

    0
    0
  • A gorgeous vintage 50's cocktail dress in black acetate, overlaid with sheer black crepe chiffon.

    0
    0
  • I have printed the text onto clear acetate, with the intention that the marker will become lost within the pages of your book.

    0
    0
  • acetate sheet just small enough to lie flat on the top tier.

    0
    0
  • acetate fabric.

    0
    0
  • acetate masters.

    0
    0
  • acetate lens in smoke and yellow, and carrying case.

    0
    0
  • acetate film or panels to be hung over existing glass partitions.

    0
    0
  • acetate frames.

    0
    0
  • Bullock JL, Massey FM, Gambrell RD Jr. Use of medroxyprogesterone acetate to prevent menopausal symptoms.

    0
    0
  • In health food stores, the most common forms of vitamin E are d-alpha tocopherol and d-alpha tocopheryl acetate or succinate.

    0
    0
  • What are the criteria to start treatment with glatiramer acetate?

    0
    0
  • The first method invented was a chemical solvent method using either methylene chloride or ethyl acetate.

    0
    0
  • Similarly, linalyl acetate exists in two isomeric forms.

    0
    0
  • Toxic activity partitioned quantitatively into ethyl acetate but about 11% of the activity was not adsorbed by solid phase C18 cartridges.

    0
    0
  • agar gel or cellulose on acetate film or glass.

    0
    0
  • amyl acetate, which smells like bananas.

    0
    0
  • I found that using amyl acetate made me sensitive to it, so that I always have a coughing fit when eating pear drops.

    0
    0
  • annular ring made of acetate sheet, the tabs are paper labels on extensions of the acetate sheet.

    0
    0
  • bust darts for shape, pointed collars, matching domed plastic buttons to fasten and matching acetate lining.

    0
    0
  • cellulose acetate decay except look for another set with a better cabinet.

    0
    0
  • cellulose acetate phthalate (CAP) as a vaginal microbicide.

    0
    0
  • A gorgeous vintage 50's cocktail dress in black acetate, overlaid with sheer black crepe chiffon.

    0
    0
  • cortisone acetate must be converted by the body into an active steroid, and the efficiency of conversion may vary between patients.

    0
    0
  • very demure early 60's cocktail dress in corded black lace, with black acetate lining.

    0
    0
  • demure early 60's cocktail dress in corded black lace, with black acetate lining.

    0
    0
  • Analysis of PCP acetate was by gas chromatography with electron capture and finally with mass spectrometric detection.

    0
    0
  • A template for the acetate grids can be prepared by drawing round the base of a petri dish on a piece of graph paper.

    0
    0
  • ethylene chloride or ethyl acetate.

    0
    0
  • ethyl acetate fraction was further separated by flash chromatography on silica gel.

    0
    0
  • potassium ferrocyanide and zinc acetate were added to each sample, which was then cleaned up on a disposable cartridge.

    0
    0
  • hydrocortisone acetate is a mild steroid which helps reduce inflammation.

    0
    0
  • inhibition of catechol oxidase in banana with lead acetate ' experiment.

    0
    0
  • languish in acetate obscurity for the ensuing 45 years.

    0
    0
  • osmic acid ), uranium (as uranyl acetate) and lead (as lead hydroxide ).

    0
    0
  • oxidase in banana with copper acetate ' experiment.

    0
    0
  • photocopy onto acetate using the library photocopiers?

    0
    0
  • Objectives The primary objective is to explore the safety of 13% of cellulose acetate phthalate (CAP) as a vaginal microbicide.

    0
    0
  • polyvinyl acetate) adhesive may be added.

    0
    0
  • Ethanoic acid is used in the manufacture of the fiber, acetate rayon.

    0
    0
  • Cholesterol acetate, crossed polars and lambda retardation plate.

    0
    0
  • This is a great English retro vintage scarf in acetate, dating to circa 1983.

    0
    0
  • Acetate is subsequently transferred to a cysteine thiol of the Condensing Enzyme domain.

    0
    0
  • The supersaturated-salt types, containing sodium acetate or sodium thiosulfate, will not work for this purpose.

    0
    0
  • tocopherol acetate is the most common supplement form of vitamin E, yet.. .

    0
    0
  • Using isotopic tracers, it was initially found that N & C atoms of heme are derived from glycine and acetate.

    0
    0
  • uranyl acetate.

    0
    0
  • The two materials investigated were a carbon black filled high density polyethylene (HDPE) and a filled ethylene vinyl acetate (EVA ).

    0
    0
  • Chapter 3 examines the prices of and market for spun yarn whilst Chapter 4 examines acetate filament yarn.

    0
    0
  • This hydroxide is soluble in well cooled acids, forming solutions which contain cobaltic salts, one of the most stable of which is the acetate.

    0
    0
  • It may be prepared in the amorphous form by heating cobalt with sulphur dioxide, in a sealed tube, at 200° C. In the hydrated condition it is formed by the action of alkaline sulphides on cobaltous salts, or by precipitating cobalt acetate with sulphuretted hydrogen (in the absence of free acetic acid).

    0
    0
  • The yellow precipitate obtained is washed with a solution of potassium acetate and finally with dilute alcohol.

    0
    0
  • Cobaltous cyanide, Co(CN)2.3H20, is obtained when the carbonate is dissolved in hydrocyanic acid or when the acetate is precipitated by potassium cyanide.

    0
    0
  • by distilling ammonium acetate.

    0
    0
  • 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.

    0
    0
  • ethylene dibromide) with silver acetate or with potassium acetate and alcohol, the esters so produced being then hydrolysed with caustic alkalis, thus: C 2 H 4 Br 2 + C2H302 Ag-*C2H4(O C2H30)2->C2H4(OH)2+2K C2H302 by the direct union of water with the alkylen oxides; by oxidation of the olefines with cold potassium permanganate solution (G.

    0
    0
  • chim., 18 59 [3], 55, p. 400) from ethylene dibromide and silver acetate.

    0
    0
  • Phenyl acetate, C 6 H 5.

    0
    0
  • In some cases, however, they are filled with fused acetate of soda; this salt is solid when cold, but when the can containing it is heated by immersion in hot water it liquefies, and in the process absorbs heat which is given out again on the change of state back to solid.

    0
    0
  • of acetate of lead in a little water, then 1 oz.

    0
    0
  • Calcium citrate must be manufactured with care to avoid an excess of chalk or lime, which would precipitate constituents of the juice that cause the fermentation of the citrate and the production of calcium acetate and butyrate.

    0
    0
  • With fused potash it forms potassium oxalate and acetate.

    0
    0
  • Tartaric acid, which is sometimes present in large quantities as an adulterant in commercial citric acid, may be detected in the presence of the latter, by the production of a precipitate of acid potassium tartrate when potassium acetate is added to a cold solution.

    0
    0
  • By his own investigations and those of Sir Edward Frankland it was proved that the radical methyl existed in acetic acid; and by the electrolysis of sodium acetate, Kolbe concluded that he had isolated this radical; in this, however, he was wrong, for he really obtained ethane, C 2 H 6, and not methyl, CH 3.

    0
    0
  • 187-I° Heptyl acetate.

    0
    0
  • Change of temperature usually suffices to determine this, though in certain cases a variation in pressure is necessary; for instance, sodium magnesium uranyl acetate, NaMg(UO 2) 3 (C 2 H 3 O 2) 9.9H 2 O shows no change in density unless the observations are conducted under a considerable pressure.

    0
    0
  • It can be prepared by distilling a mixture of dry calcium benzoate and acetate, Ca(O2CC6H5)2 + (CH3CO2)2Ca = 2CaCO3 + 2 C6H5CO.CH3, or by condensing benzene with acetyl chloride in the presence of anhydrous aluminium chloride (C. Friedel and J.

    0
    0
  • In the electrolysis of a concentrated solution of sodium acetate, hydrogen is evolved at the cathode and a mixture of ethane and carbon dioxide at the anode.

    0
    0
  • If an aqueous solution of methyl acetate be allowed to stand, a slow decomposition goes on.

    0
    0
  • Let us allow dilute sodium acetate to react with dilute hydrochloric acid.

    0
    0
  • The ammonium salt is then converted into the lead salt by precipitation with lead acetate and the lead salt decomposed by sulphuretted hydrogen.

    0
    0
  • The corresponding hydrate, Pb(OH)2, is obtained as a white crystalline precipitate by adding ammonia to a solution of lead nitrate or acetate.

    0
    0
  • Lead dioxide, Pb0 2, also known as "puce oxide," occurs in nature as the mineral plattnerite, and may be most conveniently prepared by heating mixed solutions of lead acetate and bleaching powder until the original precipitate blackens.

    0
    0
  • Commercial red lead is frequently contaminated with this oxide, which may, however, be removed by repeated digestion with lead acetate.

    0
    0
  • By the action of the acetic acid and atmospheric oxygen, the lead is converted superficially into a basic acetate, which is at once decomposed by the carbon dioxide, with formation of white lead and acetic acid, which latter then acts de novo.

    0
    0
  • Ammonium sulphide blackens it, and it is soluble in solution of ammonium acetate, which distinguishes it from barium sulphate.

    0
    0
  • The normal ortho-phosphate, Pb3(P04)2, is a white precipitate obtained by adding sodium phosphate to lead acetate; the acid phosphate, PbHPO 4, is produced by precipitating a boiling solution of lead nitrate with phosphoric acid; the pyrophosphate and meta-phosphate are similar white precipitates.

    0
    0
  • Lead acetate, Pb(C2H302)2.3H20 (called "sugar" of lead, on account of its sweetish taste), is manufactured by dissolving massicot in aqueous acetic acid.

    0
    0
  • From this salt are made the following preparations: (a) Pilula Plumbi cum Opio, the strength of the opium in it being i in 8, dose 2 to 4 grains; (b) Suppositoria Plumbi composita, containing lead acetate, opium and oil of theobroma, there being one grain of opium in each suppository; (c) Unguentum Plumbi Acetatis; (d) Liquor Plumbi Subacetatis Fortior, Goulard's extract, strength 24% of the subacetate; this again has a sub-preparation, the Liquor Plumbi Subacetatis Dilutis, called Goulard's water or Goulard's lotion, containing 1 part in 80 of the strong extract; (e) Glycerinum Plumbi Subacetatis, from which is made the Unguentum Glycerini Plumbi Subacetatis.

    0
    0
  • It is best to commence the electrolytic thickening in a silver acetate bath.

    0
    0
  • 60 at 15° C. One gram requires for solution between Boo and moo c.c. of water, 4 c.c. of absolute alcohol or 18 c.c. of wood spirit, and it is scarcely at all soluble in glycerin itself, but mixes in all proportions with ether, acetone, ethyl acetate and benzene.

    0
    0
  • Alcoholic solutions of the alkalis also produce much nitrite along with some formate and acetate.

    0
    0
  • The latter reacts with chlorine to give silicon nonyl-chloride Si(C2H5)3 C2H4C1, which condenses with potassium acetate to give the acetic ester of silicon nonyl alcohol from which the alcohol (a camphor-smelling liquid) may be obtained by hydrolysis.

    0
    0
  • Wohl forms the oxime and converts it into an acetylated nitrile by means of acetic anhydride and sodium acetate; ammoniacal silver nitrate solution removes hydrocyanic acid and the resulting acetate is hydrolysed by acting with ammonia to form an amide, which is finally decomposed with sulphuric acid.

    0
    0
  • In the case of acetate the precipitation is quite complete; from a sulphate or chloride solution the greater part of the metal goes into the precipitate; in the presence of a sufficiency of free HC1 the metal remains dissolved; sulphide of ammonium precipitates the metal completely, even in the presence of ammonium salts and free ammonia.

    0
    0
  • Those treated here are the sulphate, oxide, carbonate, oleate and acetate.

    0
    0
  • Wallach, Ber., 1881, 14, P. 421); by the action of reducing agents on nitroparaffins; by the action of zinc and hydrochloric acid on aldehyde ammonias (German Patent 73,812); by the reduction of the phenylhydrazones and oximes of aldehydes and ketones with sodium amalgam in the presence of alcohol and sodium acetate (J.

    0
    0
  • Soc., 1901, 79, p. 828) has resolved benzyl-allyl-phenyl-methylamine iodide by boiling with silver d-camphorsulphonate in a nearly anhydrous mixture of acetone and ethyl acetate.

    0
    0
  • 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.

    0
    0
  • The simplest of all include: (z) the synthesis of sodium oxalate by passing carbon dioxide over metallic sodium heated to 3500 - 360'; (2) the synthesis of potassium formate from moist carbon dioxide and potassium, potassium carbonate being obtained simultaneously; (3) the synthesis of potassium acetate and propionate from carbon dioxide and sodium methide and sodium ethide; (4) the synthesis of aromatic acids by the interaction of carbon dioxide, sodium and a bromine substitution derivative; and (5) the synthesis of aromatic oxy-acids by the interaction of carbon dioxide and sodium phenolates (see Salicylic Acid).

    0
    0
  • Carbon monoxide takes part in the syntheses of sodium formate from sodium hydrate, or soda lime (at 200 0 -2 20 0), and of sodium acetate and propionate from sodium methylate and sodium ethylate at 160 0 -200°.

    0
    0
  • If a solution of potassium acetate be electrolysed the products are ethane, carbon dioxide, potash and hydrogen; in a similar manner, normal potassium succinate gives ethylene, carbon dioxide, potash and hydrogen; these reactions may be represented: CH 3 �CO 2;K CH 3 CO 2 K' CH 2 �CO 2 1K CH 2 CO 2 K' --> I + + I I -i iI + CH 3 �CO 21 K CH 3 CO 2 K' CH 2 �CO 2 iK CH 2 CO 2 K' By electrolysing a solution of potassium ethyl succinate, KO 2 C�(CH 2) 2 CO 2 C 2 H 5, the KO 2 C� groups are split off and the two residues �(CH 2) 2 CO 2 C 2 H 5 combine to form the ester (CH2)4(C02C2H5)2.

    0
    0
  • In the same way, by electrolysing a mixture of a metallic salt and an ester, other nuclei may be condensed; thus potassium acetate and potassium ethyl succinate yield CH 3 * CH2 � CH2 � C02 C2H5.

    0
    0
  • It may also be prepared (in the form of its acetyl derivative) by heating a-naphthol with sodium acetate, ammonium chloride and acetic acid (A.

    0
    0
  • Weith, Ber., 1880, 13, 1300); or in the form of its acetyl derivative by heating /3-naphthol with ammonium acetate to 270-280° C. It forms odourless, colourless plates which melt at 111-112° C. It gives no colour with ferric chloride.

    0
    0
  • The acetate and the citrate are valuable mild diuretics in Bright's disease and in feverish conditions, and by increasing the amount of urine diminish the pathological fluids in pleuritic effusion, ascites, &c. In tubal nephritis they aid the excretion of fatty casts.

    0
    0
  • It can be prepared by the reduction of phenyl propiolic acid with zinc and acetic acid, by heating benzal malonic acid, by the condensation of ethyl acetate with benzaldehyde in the presence of sodium ethylate or by the so-called "Perkin reaction"; the latter being the method commonly employed.

    0
    0
  • In making the acid by this process benzaldehyde, acetic anhydride and anhydrous sodium acetate are heated for some hours to about 180 C., the resulting product is made alkaline with sodium carbonate, and any excess of benzaldehyde removed by a current of steam.

    0
    0
  • It is detected by heating with ordinary alcohol and sulphuric acid, which gives rise to acetic ester or ethyl acetate, recognized by its" fragrant odour; or by heating with arsenious oxide, which forms the pungent and poisonous cacodyl oxide.

    0
    0
  • Ferrous and ferric acetates are used as mordants; normal lead acetate is known in commerce as sugar of lead; basic copper acetates are known as verdigris.

    0
    0
  • In the form of a chromate, it may be determined by precipitation, in acetic acid solution, with lead acetate; the lead chromate precipitate collected on a tared filter paper, well washed, dried at loo° C. and weighed; or the chromate may be reduced by means of sulphur dioxide to the condition of a chromic salt, the excess of sulphur dioxide expelled by boiling, and the estimation carried out as above.

    0
    0
  • Chromous sulphate, CrS04 7H 2 0, isomorphous with ferrous sulphate, results on dissolving the metal in dilute sulphuric acid or, better, by dissolving chromous acetate in dilute sulphuric acid, when it separates in blue crystals on cooling the solution.

    0
    0
  • On pouring a solution of chromous chloride into a saturated solution of sodium acetate, a red crystalline precipitate of chromous acetate is produced; this is much more permanent in air than the other chromous salts and consequently can be used for their preparation.

    0
    0
  • Cyanogen compounds of chromium, analogous to those of iron, have been prepared; thus potassium chromocyanide, K 4 Cr(CN) 6.2H 2 0, is formed from potassium cyanide and chromous acetate; on exposure to air it is converted into the chromicyanide, K 3 Cr(CN) 6, which can also be prepared by adding chromic acetate solution to boiling potassium cyanide solution.

    0
    0
  • Hewitt has also attacked the problem by brominating the oxyazobenzenes, and has shown that when the hydrobromic acid produced in the reaction is allowed to remain in the system, a brombenzene-azo-phenol is formed, whilst if it be removed (by the addition of sodium acetate) bromination takes place in the phenolic nucleus; consequently the presence of the mineral acid gives the azo compound a pseudo-quinonoid character, which it does not possess if the mineral acid be removed from the sphere of the reaction.

    0
    0
  • CH2([[Coon)2+Ch3cho-->Ch3 Ch:C(000h)2->Ch3 Ch:Ch 000h]]; or by heating pyruvic acid with an excess of acetic anhydride and sodium acetate to 160-180° C. (B.

    0
    0
  • Heated with anhydrous sodium acetate and acetic anhydride it gives cinnamic acid; with ethyl bromide and sodium it forms triphenyl-carbinol (C 6 H 5) 3 C OH; with dimethylaniline and anhydrous zinc chloride it forms leuco-malachite green C6H5CH[C6H4N(CH3)2]2; and with dimethylaniline and concentrated hydrochloric acid it gives dimethylaminobenzhydrol, C 6 H 5 CH(OH)C 6 H 4 N(CH 3) 2.

    0
    0
  • Trans., 1861, p. 163); the first named decomposing aluminium acetate (from lead acetate and aluminium sulphate) with boiling water, the latter dialysing a solution of the basic chloride (obtained by dissolving the hydroxide in a solution of the normal chloride).

    0
    0
  • Acetyl acetone, CH 3 CO CH 2 CO CH 3, may be prepared by the action of aluminium chloride on acetyl chloride, or by condensing ethyl acetate with acetone in the presence of sodium (L.

    0
    0
  • Phys., 1862 (3), 65, p. 385 et seq.) have shown in the case of the formation of ethyl acetate from ethyl alcohol and acetic acid, a point of equilibrium is reached, beyond which the reacting system cannot pass, unless the system be disturbed in some way by the removal of one of the products of the reaction.

    0
    0
  • Ethyl acetate (acetic ether), CH3.002C2H5, boils at 75° C. Isoamylisovalerate, C4H9 C02C5Hn, boils at 196° C. and has an odour of apples.

    0
    0
  • p. 721) obtained the values 9.113 from analyses of beryllium acetonyl-acetate and beryllium basic acetate.

    0
    0
  • It may be prepared by the hydrolysis of ethyl acetoacetate, or by passing carbon monoxide over a mixture of sodium acetate and sodium ethylate at 205° C. (A.

    0
    0
  • Liebig, Ann., 1838, 26, p. 298), by warming caffuric acid with lead acetate solution (E.

    0
    0
  • A higher hydrated oxide, CeO 3 xH 2 O, is formed by the interaction of cerous sulphate with sodium acetate and hydrogen peroxide (Lecoq de Boisbaudran, Comptes rendus, 1885, loo, p. 605).

    0
    0
  • of the acetate to i fl.

    0
    0
  • Besides the dryers already mentioned, lead acetate, manganese borate, manganese dioxide, zinc sulphate and other bodies are used.

    0
    0
  • y-Oxyacids are formed when aldehydes are heated with sodium succinate and sodium acetate.

    0
    0
  • Geuther, who showed that the chief product of the action of sodium on ethyl acetate was a sodium compound of composition C6H903Na, which on treatment with acids gave a colourless, somewhat oily liquid of composition C6H1003.

    0
    0
  • The substance is best prepared by drying ethyl acetate over calcium chloride and treating it with sodium wire, which is best introduced in one operation; the liquid boils and is then heated on a water bath for some hours, until the sodium all dissolves.

    0
    0
  • Wanklyn have shown that pure ethyl acetate free from alcohol will not react with sodium to produce aceto-acetic ester.

    0
    0
  • Scheele's green is a basic copper arsenite; Schweinfurt green, an aceto-arsenite; and Casselmann's green a compound of cupric sulphate with potassium or sodium acetate.

    0
    0
  • The ketenes are usually obtained by the action of zinc on ethereal or ethyl acetate solutions of halogen substituted acid chlorides or bromides.

    0
    0
  • Two very old remedies for fever are acetate of ammonia and nitrous ether.

    0
    0
  • Now we can see the reason for their administration, because the nitrous ether, consisting chiefly of ethyl nitrite, dilates the superficial vessels and thus allows greater escape of heat from the surface; while acetate of ammonia, by acting as a diaphoretic and stimulating the secretion of sweat, increases the loss of heat by evaporation.

    0
    0
  • It does not form a precipitate with lead acetate solution, as the isomeric pyrocatechin does.

    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 lead sulphate, obtained as described above and dissolved in ammonium acetate, is acidulated with acetic acid diluted with hot water and heated to boiling-point.

    0
    0
  • It is standardized by dissolving a weighed amount of lead sulphate in ammonium acetate and proceeding as described above.

    0
    0
  • When potassium iodide is added to a solution of cupric acetate, the reaction (Cu(C 2 H 3 0 2) 2 + 2KI= Cul + 2K(C 2 H 3 0 2) + I takes place; that is, for each atom of copper one atom of iodine is liberated.

    0
    0
  • The amount manufactured in 1906-1907 was 346 lb of morphine hydrochlorate, 12 lb of the acetate and 61 lb of codeia.

    0
    0
  • On the large scale it is prepared by the dry distillation of calcium acetate (CH3C02)2Ca= CaCO3 +CH3COCH3.

    0
    0
  • The barium carbonate used in the process acts as a contact substance, since the temperature at which the operation is carried out is always above the decomposition point of barium acetate.

    0
    0
  • 6, p. 329); and by heating piperidine in acetic acid solution with silver acetate (J.

    0
    0
  • It is oxidized to pyridine by heating with concentrated sulphuric acid to 300° C., or with nitrobenzene to 250° C., or with silver acetate to 180° C. Being an imide it readily yields a nitroso derivative, and N-alkyl and acidyl derivatives.

    0
    0
  • To prepare it olive oil is saponified with potash, and lead acetate added; the lead salts are separated, dried, and extracted with ether, which dissolves the lead oleate; the solution is then treated with hydrochloric acid, the lead chloride filtered off, the liquid concentrated, and finally distilled under diminished pressure.

    0
    0
  • Alcohols are obtained from the corresponding halogen compounds by the action of moist silver oxide, or by warming them with silver acetate and acetic acid; by the reduction of ketones with metallic sodium; by passing the vapours of monohydric phenols and hydrogen over finely divided nickel (P. Sabatier and J.

    0
    0
  • Arsenides, Arsenites, &c. - Several iron arsenides occur as minerals; lolingite, FeAs 2, forms silvery rhombic prisms; mispickel or arsenical pyrites, Fe2AsS2, is an important commercial source of arsenic. A basic ferric arsenite, 4Fe2O3 As2O3.5H 2 O, is obtained as a flocculent brown precipitate by adding an arsenite to ferric acetate, or by shaking freshly prepared ferric hydrate with a solution of arsenious oxide.

    0
    0
  • Liquor ferri acetatis, solution of ferric acetate.

    0
    0
  • The arseniuretted hydrogen produced is passed through a tube containing lead acetate paper and soda-lime, and finally through a narrow glass tube, constricted at various points, and heated by a very small flame.

    0
    0
  • Arsenic compounds can be detected in the dry way by heating in a tube with a mixture of sodium carbonate and charcoal when a deposit of black amorphous arsenic is produced on the cool part of the tube, or by conversion of the compound into the trioxide and heating with dry sodium acetate when the offensive odour of the extremely poisonous cacodyl oxide is produced.

    0
    0
  • On distillation of equal parts of dry potassium acetate and arsenious oxide, a colourless liquid of unbearable smell passes over, which is spontaneously inflammable and excessively poisonous.

    0
    0
  • Thus amyl acetate is used as an imitation of the jargonelle-pear flavour; amyl valerate replaces apple flavour, and a mixture of ethyl and propyl butyrates yields the so-called pine-apple flavour.

    0
    0
  • As an illustration of the extent to which this part of the industry suffers from the climate, it may be stated that oil from lavender plants grown in England never produces more than 7 to 10% linalool acetate, which gives the characteristic scent to lavender oil, whilst oil from lavender grown in the south of France frequently yields as much as 35% of the ester.

    0
    0
  • The proof that this is due mainly to climatic influences is furnished by the fact that Mitcham lavender transplanted to France produces an oil which year by year approximates more closely in respect of its contents of linalool acetate to the product of the French plant.

    0
    0
  • - This group includes the sulphates of sodium, potassium and magnesium, the acetate and tartrate of potash, citrate of magnesium, sodium phosphate, sodium tartrate and similar salts.

    0
    0
  • Gum arabic is not precipitated from solution by alum, stannous chloride, sulphate or nitrate of copper, or neutral lead acetate; with basic lead acetate it forms a white jelly, with ferric chloride it yields a stiff clear gelatinoid mass, and its solutions are also precipitated by borax.

    0
    0
  • Its solution is not thickened by borax, and is precipitated by neutral lead acetate; and dilute sulphuric acid converts it into d-glucose.

    0
    0
  • Part of it only is soluble in water, and that resembles gummic acid in being precipitated by alcohol and ammonium oxalate, but differs from it in giving a precipitate with neutral lead acetate and none with borax.

    0
    0
  • Ethanoic acid is used in the manufacture of the fiber, acetate rayon.

    0
    0
  • Cholesterol acetate, crossed polars and lambda retardation plate.

    0
    0
  • This is a great English retro vintage scarf in acetate, dating to circa 1983.

    0
    0
  • Acetate is produced as the end product of a metabolic pathway that generates ATP by substrate level phosphorylation.

    0
    0
  • The supersaturated-salt types, containing sodium acetate or sodium thiosulfate, will not work for this purpose.

    0
    0
  • Alpha tocopherol acetate is the most common supplement form of vitamin E, yet...

    0
    0
  • Using isotopic tracers, it was initially found that N & C atoms of heme are derived from glycine and acetate.

    0
    0
  • No virus particles were observed in EM of leaf extracts stained with uranyl acetate.

    0
    0
  • The two materials investigated were a carbon black filled high density polyethylene (HDPE) and a filled ethylene vinyl acetate (EVA).

    0
    0
  • The collection includes acetate and metal frames in semi-rimless and full frame styles.

    0
    0
  • He spent a few days at my vet's office, and the vet sent him home with a prescription of Megestrol Acetate five mg to take twice a week.

    0
    0
Browse other sentences examples →