ACID BLUE 20

will all Alcohol indole Turin?( Solvent Blue 7, C.I. 50400) stlfonation, its product again into sodium salt.

navy blue. Soluble in water for blue purple, in ethanol for blue. The strong sulfuric acid for blue, blue or purple for diluted, with blue precipitation. Sodium hydroxide solution in aqueous solution to join a red light purple precipitation.

Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
		Fading	Stain		Fading	Stain	Fading	Stain
ISO	4	4			3		4