Leuco Sulphur Green 2;Sodyeco Sulphur Green GCL;C.I. Leuco Sulfur Green 2;Sulphol Liquid Green QGCF;Sodyesul Liquid Green NYCF;C.I. Leuco Sulphur Green 2;Leuco sulfur green 2 (C.I. 53571);C.I.Leuco Sulphur Green 2:C.I.53571;1-Naphthalenesulfonic acid, 5-[(4-hydroxyphenyl)amino]-8-(phenylamino)-, reaction products with sodium sulfide (Na2(Sx)), leuco derivs.;1-naphthalenesulfonic acid, 5-[(4-hydroxyphenyl)amino]-8-(phenylamino)-, reaction products with sodium sulfide (Na2(Sx)), leuco derivatives
the preparation methods andC.I.SulphurGreen 3(C.I. 53570) similar,but the curing reaction sulfate omitted.
Properties and Applications
blue light green to green. In the Sodium sulfide solution solubility is good, for olive; In concentrated sulfuric acid for skipper, dilution of dark after precipitation.