| Identification | Back Directory | [Name]
disodium 3-[[4-[[4-amino-6(or 7)-sulphonatonaphthyl]azo]phenyl]azo]-6-[(2,4-diaminophenyl)azo]-4-hydroxynaphthalene-2-sulphonate | [CAS]
8003-62-1 | [Synonyms]
Direct black 94
Direct Black FF
Direct Black L-N
EINECS 232-321-9
C.I. Direct black 9
Atul Direct Black FR
Dycosdirect Black FF.
Dinamine Fast Black FR
Direct black 9 (C.I. 31565
C.I.Direct Black 9:C.I.31560/31565
disodium 3-[[4-[[4-amino-6(or 7)-sulphonatonaphthyl]azo]phenyl]azo]-6-[(2,4-diaminophenyl)azo]-4-hydroxynaphthalene-2-sulphonate
3-[[4-[[4-amino-6(or7)-sulfo-1-naphthalenyl]azo]phenyl]azo]-6-[(2,4-diaminophenyl)azo]-4-hydroxy-2-naphthalenesulfonic aci disodium salt
disodium 3-[[4-[[4-amino-6(or 7)-sulphonatonaphthyl]azo]phenyl]azo]-6-[(2,4-diaminophenyl)azo]-4-hydroxynaphthalene-2-sulphonate ISO 9001：2015 REACH
disodium,(3Z)-3-[[4-[(4-amino-6-sulfonatonaphthalen-1-yl)diazenyl]phenyl]hydrazinylidene]-6-[(2,4-diaminophenyl)diazenyl]-4-oxonaphthalene-2-sulfonate
2-Naphthalenesulfonicacid, 3-[2-[4-[2-[4-amino-6(or7)-sulfo-1-naphthalenyl]diazenyl]phenyl]diazenyl]-6-[2-(2,4-diaminophenyl)diazenyl]-4-hydroxy-,sodium salt (1:2) | [EINECS(EC#)]
232-321-9 | [Molecular Formula]
C32H25N9O7S2.2Na | [MOL File]
8003-62-1.mol | [Molecular Weight]
755.691 |
| Hazard Information | Back Directory | [Chemical Properties]
Black, uniform powder. Soluble in water, ethylene glycol ether, slightly soluble in ethanol, and insoluble in other organic solvents. Its aqueous solution is reddish-black, and becomes slightly reddish upon addition of concentrated alkali solution. In concentrated sulfuric acid, it is dark blue to navy blue, and upon dilution, it becomes dark reddish-blue to black. In concentrated nitric acid, it forms a red solution. It is slightly soluble in concentrated hydrochloric acid, resulting in a reddish-gray color. | [Preparation]
4-Nitrobenzenamine diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid matches, will the nitro reduction for amino, product to diazo, and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid?coupling, generation of accidentally nitrogen compounds to diazo, and Benzene-1,3-diamine coupling (31560). Note: the above structure is in (FIAT 764) about Columbia Black FF examples given in this, but the real structure have not been determined. 4-Nitrobenzenamine diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid matches, will the nitro reduction for amino, product to diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid?coupling, generation of accidentally nitrogen compounds to diazo, and 4-Methylbenzene-1,3-diamine coupling (C i.. 31565) | [Properties and Applications]
black. Black uniform powder. Soluble in water for red light black, soluble in soluble fiber element, slightly soluble in alcohol, insoluble in other organic solvents. In the dark for the strong sulfuric acid to navy, diluted dark red light for blue or black; In nitric acid solution for red; In strong hydrochloric acid slightly soluble in, red to grey. The dye solution to join strong micro red sodium hydroxide solution. Mainly used for cotton, hemp, such as glue of cellulose fiber dyeing, also suitable for silk, polyamide fiber dyeing. Especially suitable for wool/stick blended fabric dyeing a bath.
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Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Soaping
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Water
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Fading
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Stain
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Fading
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Stain
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ISO
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4
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4-5
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3
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1-2
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2-3
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AATCC
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3
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5
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4
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2
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2-3
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| Company Name: |
Alfa Chemistry
|
| Tel: |
1-516-6625404 |
| Website: |
https://www.alfa-chemistry.com |
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