Synthetic colouring matters; dyestuffs derived from pyridine, quinoline, acridine and xanthene (1922)
Hewitt, John Theodore, 1868- · London Longmans, Green · leaf 245
228 SYNTHETIC COLOURING MATTERS … CH, CH, OH The intermediate products (I) and (II) were capable of isolation; the hydrochloride was not recognised as an oxonium salt but the elements of hydrochloric acid were supposed to attach themselves to carbon atoms.1 In the light of our present knowledge, the hydrochloride must be…
Dyes and dyeing
Internet Archive · Gerstein - University of Toronto · Public domain (published before 1931). Free to use for anything.
