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Acid Red 9

Name:C.I.Acid Red 9,C.I.15635

Molecular Structure: Single azo class

C.I.Acid Red 9,C.I.15635,CAS 8003-59-6,400.38,C20H13N2NaO4S,Acid Red PE,Silk Scarlet

C.I.Acid Red 9,C.I.15635,CAS 8003-59-6,400.38,C20H13N2NaO4S,Acid Red PE,Silk Scarlet

Molecular Formula:C20H13N2NaO4S

Molecular Weight: 400.38

CAS Registry Number:8003-59-6

Manufacturing Methods : 6-Aminonaphthalene-1-sulfonic acid and 7-Aminonaphthalene-1-sulfonic acid diazo, and Naphthalen-2-ol coupling.

Properties and Applications: yellow light red. Slightly soluble in cold water, soluble in hot water for yellow red. The strong sulfuric acid for quality in red, dilute appear after brown precipitation. In water solution to join hydrochloric acid with brown precipitation; Add sodium hydroxide red-brown precipitation.

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

List of Suppliers:

Acid Red PE

Mitsui Silk Scarlet( Mitsui Toatsu Chemicals Ltd )

Silk Scarlet( Sumitomo Chemical Co. Ltd )


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