Abstract
It is found that arsenic acid in aqueous solutions is reduced chiefly to arsine, whose yield substantially depends on the cathode material nature and electrolysis conditions. The yield increases with the acid concentration and catholyte temperature. The maximum yield (current efficiency of about 50%) is obtained on a cadmium cathode. Hydrochloric acid or cationic surface-active substances present in the catholyte raise the arsine yield on a copper cathode by more than two times and make no impact on the yield on a cadmium cathode. A possible mechanism of the observed phenomena is discussed.
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REFERENCES
Arnold, J.P. and Jonson, R.M., Talanta, 1969, vol. 16, p. 1191.
Zhdanov, S.I., Kryukova, T.L., and Vasil'eva, V.G., Elektrokhimiya, 1975, vol. 11, p. 767.
Dzhaparidze, Dzh.I., Dzhokhadze, G.M., and Siradze, R.V., Soobshch. Akad. Nauk Gruz. SSR, 1975, vol. 79, p. 105.
White, M.C. and Bard, A.J., Anal. Chem., 1966, vol. 38, p. 61.
Gopalakrishnan, V., Gnanasekaran, K.S.A., Narasimham, K.G., and Udupa, H.K.K., Trans. Soc. Adv. Electrochem. Sci. Technol., 1976, vol. 11, p. 251.
Akbasova, A.D. and Dzekunov, V.P., Fizikokhimicheskie metody razdeleniya, polucheniya i analiza metallov (Physicochemical Methods for the Separation, Production, and Analysis of Metals), Alma-Ata, 1988, p. 28.
Akbasova, A.D., Dzekunov, V.P., and Nauzyrbaev, M.K., Available form Kaz. NIINTI, 1987, Alma-Ata, no. 1780-ka.
Akbasova, A.D., Dzekunov, V.P., and Pavlova, O.D., Abstracts of Papers, 6ya Vses. konf. po elektrokhimii (6th All-Union Conf. on Electrochemistry), Moscow: VINITI, 1982, vol. 1, p. 172.
Popova, T.G. and Khamudkhanova, Sh.Z., Abstracts of Papers, 6ya Vses. konf. po elektrokhimii (6th All-Union Conf. on Electrochemistry), Moscow: VINITI, 1982, vol. 1, p. 288.
Charlot, G., Les m'ethodes de la chimie analytique; analyse quantitative minérale, Paris: Masson, 1961.
Remy, H., Treatise on Inorganic Chemistry, New York: Van Nostrand, 1956, vol. 1.
USSR Inventor's Certificate no. 27546, 1932.
Tolstikov, V.P., Zh. Org. Khim., 1969, vol. 39, p. 240.
Salzberg, H. and Goldschmidt, B., J. Electrochem. Soc., 1960, vol. 107, p. 348.
Chernykh, I.N. and Tomilov, A.P., Zh. Prikl. Khim. (St. Petersburg), 1995, vol. 68, p. 1208.
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Chernykh, I.N., Tomilov, A.P., Smetanin, A.V. et al. Electrochemical Reduction of Arsenic Acid. Russian Journal of Electrochemistry 37, 942–946 (2001). https://doi.org/10.1023/A:1011900411250
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DOI: https://doi.org/10.1023/A:1011900411250