mordanting Gallocyanine?related compounds and N,N-dimethyl-4-nitrosobenzenamine or N1,N1-dimethylbenzene-1,4-diamine in Dinitrobenzene or nitrobenzene?presence reaction, then reduction into leuco compound.
Properties and Applications
green to red light navy blue. Soluble in water for shallow blue light green. In concentrated sulfuric acid to pale red light brown, add Manganese dioxide is purple, dilution after brown. Dye aqueous solution to join concentrated sodium hydroxide solution for purple.
