2-Nitro-p-toluolsulfonsure

2-NITROTOLUENE-4-SULFONIC ACID Chemische Eigenschaften,Einsatz,Produktion Methoden

• Physikalische Eigenschaften

  2-Nitrotoluene-4-sulfonic Acid, crystallizes from water as pale yellow hygroscopic needles of the dihydrate.

• Verwenden

  The total liquor of 2-Nitrotoluene-4-sulfonic Acid is hydrogenated in situ to give o-toluidine-4-sulfonic acid [618-03-1]. Isolated 2-nitrotoluene-4- sulfonic acid may be converted to 2-nitro-p-toluenesulfonyl chloride [54090-41-4], but the preferred process for [54090-41-4] is chlorosulfonation of 2-nitrotoluene. Reaction of [54090-41-4] with dimethylamine followed by reduction gives 3-amino-4-methyl-N,N-dimethylbenzenesulfonamide [6331-68-6] for use as an azoic diazo component.

• Vorbereitung Methode

  2-Nitrotoluene is sulfonated by heating with 25 % oleum at 80 ℃ for 3 h, then quenching and liming to give a neutral solution of the sodium salt of 2-Nitrotoluene-4-sulfonic Acid.

2-NITROTOLUENE-4-SULFONIC ACID Upstream-Materialien And Downstream Produkte

2-Nitro-p-toluolsulfonsure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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