2,5-Diaminobenzol-1,4-disulfonsure

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Warnung

• Sicherheit

  P280：Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

1,4-PHENYLENEDIAMINE-2,5-DISULFONIC ACID Chemische Eigenschaften,Einsatz,Produktion Methoden

• Vorbereitung Methode

  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 Upstream-Materialien And Downstream Produkte

2,5-Diaminobenzol-1,4-disulfonsure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global(81)Suppliers

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