Effect of electrolyte composition on the properties of mercury electrochemical coulometers
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The results of studies on mercury capillary coulometers containing acidified electrolyte solutions (fluoroborate or perchlorate) or neutral solutions are presented. The effects of the solution composition on the coulometer properties such as internal resistance, current yield, and electrochemical stability are discussed. It has been shown that the solutions of mercury salts which contain fluoroboric or perchloric acid are more advantageous for use as mercury coulometer electrolytes than the iodide solutions used hitherto.
The mercury capillary coulometers which are discussed here are widely used as electrochemical integrators and as the working time meters of electrical instruments in laboratories and in industry.
KeywordsPhysical Chemistry Mercury Iodide Perchlorate Electrolyte Solution
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