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Benzine

This is the name given in the United States to one of the products solved in water to which subcarbonate of potdistilled from petroleum, having a specific ash is added, whereby the nitric acid is taken gravity of about .73, or 65° of Baumé's light up, and the urea set at liberty. This new hydrometer. (See No. 1527.) It has not yet liquor is evaporated at a gentle heat, nearly been frozen, and is dangerously volatile at to dryness; the residue is treated with pure all temperatures. (See No. 346.) Benzine alcohol, which only dissolves the urea; the so- , which only dissolves the urea; the soscarcely attacks asphaltum or pitch, and lution is concentrated, and the urea crystalis concentrated, and the urea crystalcannot (like benzole), be converted by nitric lizes. (Thénard.) acid into nitro-benzole. It is consequently Or: Mix 28 parts of perfectly dry ferrouseless for the preparation of aniline. Ben- cyanide of potassium with 14 parts of black zine consists of about 84 per cent. carbon and oxide of manganese, both pure and in fine 13 per cent. hydrogen. (See No. 440.) powder; then place them on a smooth iron