1,4-PHENYLENEDIAMINE-2,5-DISULFONIC ACID manufacturers
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| | 1,4-PHENYLENEDIAMINE-2,5-DISULFONIC ACID Basic information |
| Product Name: | 1,4-PHENYLENEDIAMINE-2,5-DISULFONIC ACID | | Synonyms: | PARA-PHENYLENE-DI-AMINE-2,5-DISULPHONIC ACID;1,4-PHENYLENEDIAMINE-2,5-DISULFONIC ACID;2,5-diamino-4-benzenedisulfonicacid;2,5-diaminobenzene-1,4-disulphonic acid;p-Phenylenediamine-2,5-disulfonic acid;4-Phenylenediamine-2,5-disulfonicacid;4-Phenylenediaminedisulfonicacid;2,5-Diamino-1,4-benzenedisulfonic acid | | CAS: | 7139-89-1 | | MF: | C6H8N2O6S2 | | MW: | 268.27 | | EINECS: | 230-439-5 | | Product Categories: | | | Mol File: | 7139-89-1.mol |  |
| | 1,4-PHENYLENEDIAMINE-2,5-DISULFONIC ACID Chemical Properties |
| | 1,4-PHENYLENEDIAMINE-2,5-DISULFONIC ACID Usage And Synthesis |
| 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% |
| | 1,4-PHENYLENEDIAMINE-2,5-DISULFONIC ACID Preparation Products And Raw materials |
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