Naphthalin-1,3,6-trisulfonsure

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Achtung

• Gefahrenhinweise

  H314：Verursacht schwere Verätzungen der Haut und schwere Augenschäden.

• Sicherheit

  P260：Dampf/Aerosol/Nebel nicht einatmen.

  P280：Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

  P310：Sofort GIFTINFORMATIONSZENTRUM/Arzt/ anrufen.

Naphtalene-1,3,6-trisulfonic Acid Chemische Eigenschaften,Einsatz,Produktion Methoden

• Verwenden

  The total reaction mixture is nitrated, and the resulting 8-nitro derivative is reduced to give 1-aminonaphthalene-3,6,8-trisulfonic acid (Koch acid), the key intermediate in the production of the important H acid. The crude trisodium salt may be precipitated from the quenched mixture after dilution to 75 % acid strength to give a product (Azoguard) used as a diazo stabilizer.

• Definition

  ChEBI: Naphthalene-1,3,6-trisulfonic acid is a naphthalenesulfonic acid.

• Vorbereitung Methode

  Naphthalene is initially sulfonated with sulfuric acid monohydrate under programmed temperature control between 80 and 145℃. Then, 65 % oleum is added gradually at 40℃ and heating is continued for 2.5 h at 145℃. Trisulfonation is complete after the further addition of 65 % oleum and heating for 3 h at 150℃. This complex procedure maximizes the formation of Naphtalene-1,3,6-trisulfonic Acid with a conversion of up to 75 %.

Naphtalene-1,3,6-trisulfonic Acid Upstream-Materialien And Downstream Produkte

Naphthalin-1,3,6-trisulfonsure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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