| Identification | Back Directory | [Name]
1,4-PHENYLENEDIAMINE-2,5-DISULFONIC ACID | [CAS]
7139-89-1 | [Synonyms]
4-Phenylenediaminedisulfonicacid
2,5-diamino-4-benzenedisulfonicacid
2,5-diaminobenzene-1,4-disulfonicaci
4-Phenylenediamine-2,5-disulfonicacid
p-Phenylenediamine-2,5-disulfonic acid
2,5-Diamino-1,4-benzenedisulfonic acid
2,5-diaminobenzene-1,4-disulfonic acid
p-Phenylenediamine-2,5-disulphonic acid
2,5-diaminobenzene-1,4-disulphonic acid
1,4-PHENYLENEDIAMINE-2,5-DISULFONIC ACID
1,4-Benzenedisulfonic acid, 2,5-diamino-
2,5-bis(azanyl)benzene-1,4-disulfonic acid
PARA-PHENYLENE-DI-AMINE-2,5-DISULPHONIC ACID | [EINECS(EC#)]
230-439-5 | [Molecular Formula]
C6H8N2O6S2 | [MDL Number]
MFCD00272406 | [MOL File]
7139-89-1.mol | [Molecular Weight]
268.27 |
| Hazard Information | Back Directory | [Production Methods]
1,4-phenylenediamine-2.5-disulfonic is obtained from p-phenylenediamine and 25% oleum at 140 ℃ or by heating p-phenylenediamine sulfate and 98% sodium hydrogen sulfate in a mixture of 1,2,4-trichlorobenzene and 1-chloronaphthalene to the boiling point of the solvent mixture (215 ℃), removing the solid roduct, dissolving it in water, neutralizing it with sodium hydroxide solution to pH 7.5 – 8, and clarifying the solution with kieselguhr. The product contains 5% of monosulfonic acid, but only a small amount of the isomeric 2,6-disulfonic acid; yield 90% |
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| Company Name: |
Santel Industries
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