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. Griffen and Co. · leaf 259
ylenediamine is used here instead of m-phenylenediamine,which is actually employed on the large scale ; the shade produced is practicallythe same). After stirring for an hour longer the dye is filtered and dried.Properties—Black powder, soluble in hot water with a violet-black colour.Dyes… … NaCl+NaHCO, CHCOONa CI I + NiN 3NaCl + 4H20 NH2 + 3Na2C03 OH OH OH —N : N-S03Na (Isodiphenyl black).
Dyes and dyeing
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