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HomeProduct name listC.I. Acid Red 158

C.I. Acid Red 158

What is C.I. Acid Red 158?

Preparation

aniline?and p-Methylaniline diazo, and 5-Hydroxy-4-(2-hydroxynaphthalene-7-sulfonamido)naphthalene-1,7-disulfonic acid?coupling.

Properties and Applications

red. Red powder, soluble in water, slightly soluble in ethanol for orange. The strong sulfuric acid dyes are cherry red, dilute to orange. The water solution is orange. Add after strong hydrochloric acid color unchanged; Add thick sodium hydroxide solution to orange brown. Used for wool, silk and their blended fabric dyeing and printing.

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

Safety information for C.I. Acid Red 158

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