Acid Violet 51

1-Aminoanthracene-9,10-dione brominated, with aniline condensation, In the presence of potassium hydroxide alkoxylated with Lauryl chloride, and sulfonation..

blue purple. Red gray powder. The strong sulfuric acid are product red, blue purple turn after diluted, a precipitate; In nitric acid are brown. Blue light purple in aqueous solution, a precipitate; Add in aqueous solution hydrochloric acid or sodium hydroxide are in red light purple, and precipitation. Used for wool, silk and polyamide fiber dyeing and printing directly.

Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
		Fading	Stain		Fading	Stain	Fading	Stain
ISO	5	4-5	5	5	4-5