A treatise on colour manufacture : a guide to the preparation, examination, and application of all the pigment colours in practical use (1908)
Zerr, Georg, Rübencamp, R. (Robert), Mayer, Charles · London : C. Griffin · leaf 448
nks, and the finest qualities of crayons. The raw material is burned in the gaseous state, and therefore a supply of gas, either from a gasworks or in a natural state as it issues from the earth, must be available. The bulk of the gas black made is obtained from the latter source, especially in… … about 6 ft. long and 2 ft. wide. The gas, with the aqueous and tarry products of combustion, first enters a vessel, where most of the tar and water settles down ; it is then put through a washer, and passes into a purifying and drying apparatus charged with lime, whence it is led through a meter…
Pigments · Coloring matter · Dyes and dyeing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
