Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Polarography of Halides in Dimethylformamide. I. Bromide Ion and Its Mercuric Compounds
Yoshihisa MatsuiRyuji KawakadoYoshio Date
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1968 Volume 41 Issue 12 Pages 2913-2918


The complex formation between tetraethylammonium bromide (TEB) and mercuric bromide in dimethylformamide was observed conductometrically, and a complex, tetraethylammonium tribromomercurate (TETM), was isolated. Voltammetric studies of TEB, TETM, and mercuric bromide were made, using the dropping mercury electrode in dimethylformamide containing 0.1 M tetraethylammonium perchlorate. It was found that TEB gives two reversible anodic waves, of which the more negative one is due to the oxidation of mercury to TETM, and the more positive, to the oxidation of mercury to mercuric bromide. The electrode reaction mechanism was also investigated by means of large-scale electrolysis with a controlled potential.

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