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Acid Red 70

Name:C.I.Acid Red 70,C.I.27155

Molecular Structure: Double azo class

C.I.Acid Red 70,C.I.27155,CAS 6226-74-0,556.48,C22H14N4Na2O7S2,Atul Brilliant Croceine Extra

C.I.Acid Red 70,C.I.27155,CAS 6226-74-0,556.48,C22H14N4Na2O7S2,Atul Brilliant Croceine Extra

Molecular Formula:C22H14N4Na2O7S2

Molecular Weight: 556.48

CAS Registry Number:6226-74-0

Manufacturing Methods : 4-((4-Aminophenyl)diazenyl)benzenesulfonic acid diazo, and 7-Hydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications: colourful yellow red. Soluble in water and ethanol to the red orange. The strong sulfuric acid in blue, diluted into pink. In water solution to join strong hydrochloric acid is palm orange; Add thick sodium hydroxide solution for dark purple.

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

List of Suppliers:

Atul Brilliant Croceine Extra ( Atul Limited  )


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