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 239
+ NaHS04 + 2H20 H20 27. Amidonaphthol disulphonic acid H.OH NH2 SO.,H1Xyl\x//lSO,HE.P. 13,44390; D.P. 69,72290. 50 grams a-naphthylamine trisulphonic acid (disodium salt) 1:3:6:8.100 ,, powdered caustic soda. The caustic soda is dissolved with 10 c.c. of water in a nickel or coppercrucible, the…
Dyes and dyeing
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