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Acid Red 31

Name:C.I.Acid Red 31,C.I.16540

Molecular Structure: Single azo class

C.I.Acid Red 31,C.I.16540,CAS 5850-50-0,468.37,C16H10N2Na2O8S2,Azo Fuchsine G,DupontAzo Fuschine G

C.I.Acid Red 31,C.I.16540,CAS 5850-50-0,468.37,C16H10N2Na2O8S2,Azo Fuchsine G,DupontAzo Fuschine G

Molecular Formula:C16H10N2Na2O8S2

Molecular Weight: 468.37

CAS Registry Number:5850-50-0

Manufacturing Methods : 2-Aminobenzenesulfonic acid diazo, and 4,5Dihydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications: blue-ray red. Soluble in water for wine red, hardly soluble in alcohol. The strong sulfuric acid for dark purple, diluted red wine. In water solution to join strong hydrochloric acid for the red; Add sodium hydroxide into wine red to the deep red.

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

List of Suppliers:

Azo Fuchsine G( Bayer Group )
DupontAzo Fuschine G(Classic Dyestuffs Inc)


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