Polarographic study of dithizone in aqueous solution

Abstract

The polarog. behavior of dithizone [60-10-6] in aqueous alkaline (pH 13) and acidic (pH 1) solns. was studied by single-sweep polarog. and cyclic voltammetry. In an alkaline medium, there were 3 waves with peak potentials at -0.63, -0.52 and -0.45 V (vs. SCE) resp., corresponding to the reduction of dithiazone anion and its oxidation products tetrazolium and disulfide compounds In an acidic medium, dithizone showed only 1 wave with a peak potential of -0.18 V (vs. SCE). The electrode reactions and characteristics of the above waves are discussed.

Key words: AQUEOUS SOLUTION, OXIDATION REDUCTION REACTION, REACTION MECHANISM, POLAROGRAPHIC ANALYSIS, DITHIZONE, ACID-BASE STATUS, ELECTROCHEMICAL PROCESS

CLC Number:

O651

Cite this article

HU YINHUA;ZHANG YONGHUI;SONG JUNFENG. Polarographic study of dithizone in aqueous solution[J]. Acta Chimica Sinica, 1987, 45(2): 191-194.

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