The synthetic dyestuffs and the intermediate products from which they are derived (1905)
Cain, John Cannell, 1871-1921, Thorpe, Jocelyn Field, 1872-1940 · London, C. Griffin and company, limited · leaf 257
d the colouring matteris complete (w-toluyleiio(iiatnine is used here instead of w-phenylenediamine,which is actually euiplo^ed on the large scale ; the shade produced is practicallythe same). After stirring for an hour longer the dye is filtered and dried. Propertys—Black powder, soluble in hot… … -r NaCl T NaHCO, CHjCOONa SOH ^ ;n ^ 3NaCl - 4H.,0 OH „, CH, 0H<^ \ + N i N< \-N : N-,/ Y \ll I N + / >NHj + SOjHx /\ / I (resorcinol). NH., (w-toluylenediamine). 3Na.,CO, OH Joh/ Nn : N. CH3 OH J NH, (Isodiphenyl black). NH, + iNaCl - sNaHCO, PREPARATION OF DYESTUFFS. 241 15. Auramine 0.…
Dyes and dyeing
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