Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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An aromatic primary amine (C 6 H 5 NH 2 ). It is a derivative of ammonia in which one hydrogen atom is replaced by the phenyl group. It is manufactured by the reduction of nitrobenzene with iron filings and either hydrochloric acid or ferrous chloride, and subsequent steam distillation after the addition of lime. Aniline is an oily, colorless, toxic liquid, which darkens upon exposure to air. It is soluble in water, alcohol, and ether, and forms a number of salts. It is the base from which a great number of intermediates for dyes are prepared, including dimethylaniline and diethylaniline, which in turn yield many so-called BASIC DYES , such as methyl violet, methyline blue and malachite green. (195 )

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