| Identification | More | [Name]
Acid chrome blue K | [CAS]
3270-25-5 | [Synonyms]
C.I.16675
Chrome fast navy blue R
4,5-Dihydroxy-3-[(2-hydroxy-5-sulfophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt
C.I.Mordant Blue 31
Chrome Blue K | [EINECS(EC#)]
999-999-2 | [Molecular Formula]
C16H9N2Na3O12S3 | [Molecular Weight]
586.4 | [MOL File]
3270-25-5.mol |
| Hazard Information | Back Directory | [Preparation]
3-Amino-4-hydroxybenzenesulfonic acid diazotization, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid coupling. | [Properties and Applications]
red light navy blue. Soluble in water and ethanol. In concentrated sulfuric acid to purple, dilution after blue light pink; In concentrated nitric acid for dark orange to yellow brown. Dye aqueous solution and sodium hydroxide as yellow solution.
|
Standard
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Ironing Fastness
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Light Fastness
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Fulling
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Persperation Fastness
|
Soaping
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Water
|
|
Alkali
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Acid
|
|
ISO
|
4-5
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5
|
5
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2-3
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4-5
|
5
|
5
|
|
|
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