Title: POLAROGRAPHIC INVESTIGATIONS OF REVERSIBLE AND IRREVERSIBLE OXIDATIONS AND REDUCTIONS AT THE DROPPING MERCURY ELECTRODE
Abstract: For the first twelve years of its existence (1922–34), the polarographic method of Heyrovský was developed empirically. A large number of reducible inorganic and organic substances was found, and convenient though arbitrary methods were developed for their analysis. By 1934, however, some important factors influencing the height of the polarographic wave were recognized by Heyrovský (1), and Ilkovič (2) was able to give a formula for the diffusion current. The reduction and deposition potentials used then showed only a vague relation to the potentiometrically and thermodynamically established normal electrode potentials of the reduced substances. This did not seem unreasonable, because in the usual potentiometric studies one deals with systems at equilibrium, while in polarographic work equilibrium would hardly be expected, since conditions at the electrode are constantly altered not only by the moving surface of the growing mercury drop but also by the current which flows. In addition, the very...
Publication Year: 1939
Publication Date: 1939-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 10
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