| Identification | Back Directory | [Name]
2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-[[4-[(4-sulfophenyl)azo]-1-naphthalenyl]azo]-, trisodium salt | [CAS]
6227-09-4 | [Synonyms]
Acid Black 18
C.I.Acid Black 18:C.I.27790
2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-[[4-[(4-sulfophenyl)azo]-1-naphthalenyl]azo]-, trisodium salt | [EINECS(EC#)]
612-992-8 | [Molecular Formula]
C26H20N5NaO10S3 | [MOL File]
6227-09-4.mol | [Molecular Weight]
681.64 |
| Hazard Information | Back Directory | [Preparation]
4-Aminobenzenesulfonic acid diazo, and Naphthalen-1-amine coupling, its product to diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling. | [Properties and Applications]
blue and black. Soluble in water for a blue-black, easily soluble in soluble fiber element, insoluble in other organic solvents. In the dark for the strong sulfuric acid, after diluted blue-black precipitation; In the dark for strong nitric acid solution, and then into a chestnut; In 10% of sodium hydroxide solution for black solution in red.
|
Standard
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Light Fastness
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Soaping
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Persperation Fastness
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Oxygen bleaching
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Fastness to seawater
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|
Fading
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Stain
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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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6-7
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4
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3-4
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3
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4
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4
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4
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3-4
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AATCC
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7-8
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4
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4
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1
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2
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2
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3
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3
|
|
|
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