ACID VIOLET 9

Uses

Violamine R is a rhodamine dye. Dyes and metabolites, Environmental Testing.

Preparation

O-Methylaniline and 2-(3,6-Dichloro-9H-xanthen-9-yl)benzoic acid?condensation, stlfonation income free alkali, and then into sodium salt.

Properties and Applications

red light purple. Red light purple powder, soluble in water, but soluble in ethanol for purple, soluble in acetone, easily soluble in ethylene glycol ether. The strong sulfuric acid dyes in the red for orange, diluted into red purple; In nitric acid for quality in red; In strong hydrochloric acid for red purple. The water solution is purple, add hydrochloric acid to blue, precipitation. Discharge sex differences, dyeing copper ions in color becomes the dark, encounter iron ion become yellow light and dark. This product is mainly used for wool, silk, polyamide fiber and its blended fabric dyeing and printing, also can be used for leather, paper, soap and biological shading, also can be used in the manufacture solvent dye..

Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
		Fading	Stain		Fading	Stain	Fading	Stain
ISO	4	2-3	3	3	1	2-3	3-4	2-3
AATCC	4	2	3	2	1	1	3-4	2