6844-73-1

2-Amino-4-chlorophenol diazotization, and 4-Acetamido-5-hydroxynaphthalene-2,7-disulfonic acid coupling.

red light navy blue. Black powder. Soluble in water for magenta, slightly soluble in alcohol. In concentrated sulfuric acid for dark blue, dilution after magenta. Its aqueous solution and concentrated hydrochloric acid into product red; With strong caustic into bordeaux red. In the dyeing of copper, iron, lead ion sensitive. Suitable for wool and silk dyeing.

Standard	Ironing Fastness	Light Fastness	Fulling		Persperation Fastness	Soaping	Water
			Alkali	Acid
ISO	4-5	5-6	4-5		5	5	5