12225-83-1

Reactive Orange 7 is a sulfonated azo dye that can undergo microbial decolorization by the yet unidentified bacterium, KMK48, under aerobic conditions. Dyes and metabolites.

2-(3-Aminophenylsulfonyl)ethyl hydrogen sulfate diazo, and 6-Acetamido-4-hydroxynaphthalene-2-sulfonic acid?coupling.

Brilliant yellow red. Orange powder, insoluble in water, soluble good. The strong sulfuric acid for big red, diluted into orange; For orange in nitric acid, no change after diluted. Water solution is orange red. Add 1 Moore to deep red sodium hydroxide solution, continue to join insurance powder and warm, to light yellow, add a boric acid sodium can’t restored to the original color. Used for cotton, viscose, linen, silk, wool, nylon and polyvinyl alcohol dip, dyeing, pad dyeing, also suitable for the fiber directly, anti-pollution, discharge printing..

Standard	Light Fastness	Oxygen bleaching		Persperation Fastness		Soaping
		Fading	Stain	Fading	Stain	Fading	Stain
ISO	5-6			5	5	5(75℃)	4-5