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Direct Green 9

Name:C.I.Direct Green 9,C.I.30310

Molecular Structure: trisazo class

C.I.Direct Green 9,C.I.30310,CAS 6360-62-9,878.69,C35H21N8Na3O12S2

C.I.Direct Green 9,C.I.30310,CAS 6360-62-9,878.69,C35H21N8Na3O12S2

Molecular Formula:C35H21N8Na3O12S2

Molecular Weight: 878.69

CAS Registry Number:6360-62-9

Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, first in alkaline conditions and 2-Nitrobenzenamine diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidand coupled the product of three, and then and 2-Hydroxybenzoic acid coupling.

Properties and Applications: dark green. Soluble in water for the green, slightly soluble in ethanol for blue light green. The strong sulfuric acid for violet black, Gray light green for diluted. The dye solution to join strong hydrochloric acid have blue light green precipitation; Add thick sodium hydroxide solution have green olive precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 4 2 1-2 2

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