Artificial dye-stuffs; their nature, manufacture, and uses (1917)
Ramsey, Albert R. J, Weston, H. Claude (Hubert Claude) · London, Routledge; New York, Dutton · leaf 30
been superseded to some extent bycoke-ovens, which have been found more economical forgas manufacture. As, however, higher temperaturesare employed, the quality of the tar is deteriorated andits content of benzol diminished ; such tar, however,may be. and often is, mixed with tar produced by… … 16 COAL AND COAL-TAR and amnioniacal liquor, but as only the second of theseis of interest to us in connection with the manufacture ofartificial dye-stuffs, we shall not describe the treatmentof the remaining distillation products beyond the stageat which coal-tar is produced. The coal is charged…
Dyes and dyeing
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