2391-29-9

by heavy chromate salt in sodium content and save processing N1,N1-dimethylbenzene-1,4-diamine, transforming it into the content and sulfonic acid, this product then through heavy chromate salt and N,N-diethylbenzenamine hydrochloride processing, into a unique of sulfur acid amine generation, then use heavy chromate salt and copper sulfate closed loop and oxidation, Finally,?the?zinc chloride?salt?precipitation

dark green light blue. Soluble in water, slightly soluble in ethanol to blue. The strong sulfuric acid for yellow green, diluted to blue. Add sodium hydroxide solution dye for purple, has the purple precipitation.

Standard( Cotton )	Light Fastness	Persperation Fastness		Ironing Fastness		Soaping
		Fading	Stain	Fading	Stain	Fading	Stain
C	2-3	1-2		3		2	4-5