Wahl, André · London, G. Bell and sons, ltd. · leaf 237
ORGANIC DYESTUFFS 218 by sulphonating, nitrating, and then reducing, or from 1 : 5-dinitroanthraquinone, by reducing carefully in alkaline solution, acidifying, and sulphonating the product. It has the following constitution : OH CO NH so NH2 CO OH By the action of formaldehyde, Alizarin Celestol… … Certain of these j9-hydroxyamido-dyestuffs also dye on metallic mordants (Nolting, Hon. sci., 1911, 540 ; Fdrb.-Ztg., 1911, 22, 174). Thus the Bayer Co. dis- covered that dinitrochrysazin : OH co OH gives blue shades on chrome mordanted wool, and it has since been shown that it also dyes on…
Dyes and dyeing -- Chemistry
Internet Archive · University of California Libraries · Public domain (published before 1931). Free to use for anything.
