On aniline and its derivatives : a treatise upon the manufacture of aniline and aniline colours (1868)
Reimann, M, Hofmann, August Wilhelm von, 1818-1892, Laire, Georges de, Girard, Adam Charles, 1837-, Crookes, William, 1832-1919 · New York : J. Wiley and Son · leaf 27
ther branch being fed with benzol. Both the liquids mix in the worm-pipe, and the heat given off is carried away by the surrounding water. Having passed the pipe, the mixture of nitro-benzol, benzol, and the excess of the acids, falls into a vessel filled with cold water. The excess of acid is… … a. Woulff's bottle, b. Agitator, c. Leading pipe for the vapours, d. Vat. e. Woulff's bottles containing water, f. Exit pipe. g. Holders of the vat. h. Bottle with the mixtures of acids.
Aniline · Coal-tar colors
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