This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1884 edition. Excerpt: ...acid CO OH Oxamic acid cO-OH2-mide Is.ns: Oxamic Acid: jco-OH2 'S a w'te, crystalline powder, slightly soluble in water. It is produced by heating acid ammonium oxalate: --CO.ONH4 _ jCO-NH2 n. (CO-OH (CO-OH + M-u' or by boiling oxamide with aqueous ammonia: --(CO-NH Hn __ (CO'NH, '(CO-NH + (CO-ONH4 and is ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1884 edition. Excerpt: ...acid CO OH Oxamic acid cO-OH2-mide Is.ns: Oxamic Acid: jco-OH2 'S a w'te, crystalline powder, slightly soluble in water. It is produced by heating acid ammonium oxalate: --CO.ONH4 _ jCO-NH2 n. (CO-OH (CO-OH + M-u' or by boiling oxamide with aqueous ammonia: --(CO-NH Hn __ (CO'NH, '(CO-NH + (CO-ONH4 and is separated from the solution of its ammonium salt thus ohtained by hydrochloric acid. Oxamic acid is a monobasic acid, and is easily dissolved by alkalies, but when boiled with these it takes up the elements of water and is converted into oxalic acid and ammonia. Boiled with water, it gives acid ammonium oxalate. Oxamide: q Jjh2 's a w'te crystalline powder, tasteless and odourless, insoluble in cold water or alcohol, and only slightly dissolved by these liquids when hot. It is produced when normal ammonium oxalate is heated: --(CO-ONH4 _ (CO-NH2 q lCO-ONH4 (CO-NH2 + 2"2U-It is, however, better prepared from an organic compound of oxalic acid--oxalic ether, a colourless liquid with pleasant ethereal odour and insoluble in water1--by shaking it with aqueous ammonia. The oily liquid gradually disappears, and a crystalline powder of oxamide takes its place, with the simultaneous formation of alcohol: --(CO-OC2H5 VH jCO-NH r nH Oxalic ether Oxamide Alcohol When carefully heated, oxamide may be sublimed, but quick heating decomposes it into various products, among which cyanogen may be recognized by its odour. Boiling with aqueous alkalies changes it into oxalic acid and ammonia. CARBON DISULPHIDE. Composition: CS2. This compound, the anhydride of a sulpho-acid corresponding to carbonic acid, was discovered by Lampadius towards the end of the preceding century. It is produced in a precisely...
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