The use of redox reactions in the analysis of dyes and dye intermediates. VI. Determination of 4,4′-dinitrostilbene-2,2′-disulfonic acid with potassium permanganate

J. Barek, A. Berka, K. Jakubec

Результат исследований: Материалы для журналаСтатья

4 Цитирования (Scopus)

Аннотация

The reaction of 4,4′-dinitrostilbene-2,2′-disulfonic acid with potassium permanganate was studied in sodium bicarbonate medium, and optimum conditions for use of this reaction for direct volumetric determination of the studied substance with permanganate and with amperometric indication of the equivalence point were found. Electrometric indication using solid electrodes cannot be recommended because of the passivation of these electrodes, and indirect determination is not satisfactory because of the subsequent oxidation of the 1-sulfo-3-nitrobenzaldehyde produced.

Язык оригиналаАнглийский
Страницы (с-по)495-502
Число страниц8
ЖурналMicrochemical Journal
Том24
Номер выпуска4
DOI
СостояниеОпубликовано - 1 янв 1979
Опубликовано для внешнего пользованияДа

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

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