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

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)495-502
Number of pages8
JournalMicrochemical Journal
Volume24
Issue number4
DOIs
Publication statusPublished - 1 Jan 1979
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

Fingerprint Dive into the research topics of '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'. Together they form a unique fingerprint.

  • Cite this