Mordant Brown 51

Подготовка

3-Amino-2-hydroxy-5-sulfobenzoic acid diazotization, and 5-Aminonaphthalene-2-sulfonic acid coupling, product and diazotization, coupled with 2-Hydroxybenzoic acid.

Свойства и приложения

red light brown. Soluble in water for golden orange, insoluble in alcohol. In concentrated sulfuric acid to green light blue, after dilution to golden brown. Dye aqueous solution with concentrated hydrochloric acid for yellow brown to olive; Join concentrated sodium hydroxide solution for purple.

Standard(cotton)	Ironing Fastness	Light Fastness	Fulling		Persperation Fastness	Soaping	Water
			Alkali	Acid
ISO	4-5	3-4			4	3	4-5