Fay, Irving W. (Irving Wetherbee), 1861-1936 · New York, D. Van Nostrand Co. · leaf 462
cid in order to dissolve the excess of ammonium chloride and the zinc chloride. The residue is then extracted with water at 60-70° (higher temperature causes hydrolysis), filtered from any unchanged ketone, and salt added to the filtrate with stirring until the dye separates out. It is then… … Auramine. (Free base) Michler's ketone >N(CH3)2 N(CH3)2 I + HCl = C— NH C=NH< N(CH3)2 N(CH3)2 01 Auramine. (Free base) Auramine hydrochloride. (The dye) Experiment 37 Preparation of Rosaniline Color Base. ✓C6H3N(0H3)2 /OgH3NH2 0^06H4NH2 + NaOH = HO0^06H4N(0H3)2 + NaCl \06H4N(CH3); 01 Color base of…
Coal-tar colors · Dyes and dyeing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
