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Direct Green 36

Name:C.I.Direct Green 36,C.I.31980

Molecular Structure: trisazo class

C.I.Direct Green 36,C.I.31980,CAS 6717-36-8,1248.05,C50H34N7Na5O17S4,Sirius Green GT

C.I.Direct Green 36,C.I.31980,CAS 6717-36-8,1248.05,C50H34N7Na5O17S4,Sirius Green GT

Molecular Formula:C50H34N7Na5O17S4

Molecular Weight: 1248.05

CAS Registry Number:6717-36-8

Manufacturing Methods : 2-(2-Sulfo-4-nitrostyryl)-5-aminobenzenesulfonic acid diazo, coupled with phenol, then methylation, will the Nitro reduction, product diazo, and 5-Amino-7-ehtoxy-2-naphthalenesulfonic acid coupling, its product to diazo, and 3-(5-Hydroxy-7-sulfonaphthalen-2-ylamino)benzoic acid coupling, and finally into copper complex. In the copper complexation processes, b oxygen radicals may be hydroxyl replaced.

Properties and Applications: dark green. Soluble in water for the green, not soluble in alcohol. The strong sulfuric acid for brown and yellow green, shallow blue light green for diluted. The dye solution to join strong hydrochloric acid have blue-ray gray precipitation; Add thick sodium hydroxide solution have yellow olive green precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 3 3-4 5 3-4 3

List of Suppliers:

Sirius Green GT IG Farbenindustrie AG )


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