POTENTIOMETRIC TITRATIONS OF SOME AZO DYES CONTAINING A HYDROXY GROUP WITH TETRABUTYLAMMONIUM HYDROXIDE IN ACETONITRILE


SERIN S. , KURTOGLU M. Ö.

ANALYST, cilt.119, ss.2213-2215, 1994 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 119 Konu: 10
  • Basım Tarihi: 1994
  • Doi Numarası: 10.1039/an9941902213
  • Dergi Adı: ANALYST
  • Sayfa Sayıları: ss.2213-2215

Özet

Fifteen azo dyes containing a hydroxy group, phenol, 1-naphthol and 2-naphthol were titrated potentiometrically with tetrabutylammonium hydroxide (TBAH) at room temperature. Potentiometric titration curves of these compounds in acetonitrile with TBAH propan-2-ol-methanol are similar to those of weak acids obtained in aqueous media with strong bases. Acetonitrile is a suitable medium for the weakly acidic compounds titrated in this work.

Fifteen azo dyes containing a hydroxy group, phenol, 1-naphthol and 2-naphthol were titrated potentiometrically with tetrabutylammonium hydroxide (TBAH) at room temperature. Potentiometric titration curves of these compounds in acetonitrile with TBAH propan-2-ol-methanol are similar to those ofweak acids obtained in aqueous media with strong bases. Acetonitrile is a suitable medium for the weakly acidic compounds titrated in this work.