Acid Black 234 CAS #157577-99-6
| Acid Black 234 Basic information |
| Product Name: |
Acid Black 234 |
| Synonyms: |
Black NB;2, 7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[[4-[(2, 4-diaminophenyl)azo]phenyl]sulfonyl]amino]phenyl]azo]-5-hydroxy-6-(phenylazo), disodium salt;Acid Black BA;Acid Black NBG;Acid Black NB-G;Apollo Leather Black NGRL;C.I.Acid Black 234;Coriamine Black NB-G |
| CAS: |
157577-99-6 |
| MF: |
C34H29N10NaO9S3 |
| MW: |
840.84 |
| EINECS: |
605-104-5 |
| Product Categories: |
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| Mol File: |
157577-99-6.mol |
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| Acid Black 234 Chemical Properties |
| density |
1.193[at 20℃] |
| vapor pressure |
0Pa at 25℃ |
| pka |
7.62[at 20 ℃] |
| Water Solubility |
215g/L at 20℃ |
| LogP |
-1.86 at 20℃ |
| CAS DataBase Reference |
157577-99-6(CAS DataBase Reference) |
| EPA Substance Registry System |
2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[[4-[(2,4-diaminophenyl)azo]phenyl]sulfonyl]amino]phenyl]azo]-5-hydroxy-6-(phenylazo)-, disodium salt (157577-99-6) |
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| Acid Black 234 Usage And Synthesis |
| Preparation |
4-Amino-N-(4-aminophenyl)benzenesulfonamide double nitriding,sulfonylurea aniline in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, aniline diazo, and the above the products in alkaline conditions coupling, and then Benzene-1,3-diamine coupled. |
| Flammability and Explosibility |
Non flammable |
| Properties and Applications |
black. Mainly used for wool, silk, cotton and glue dyeing, also can be used for leather dyeing. |
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