Abstract
By anodic oxidation of hydrogen on the Pt ring of a metal-disk-Pt-ring rotating electrode in aqueous acid (pH 0.5–3) sulfate solutions, it is shown that during the polarization of the metal disk hydrogen coevolves by two parallel reactions. One is the well known electrochemical charge transfer process, while the other one is a direct chemical reaction of the metal, i.e. iron, with water molecules from the electrolyte. This process was proposed a long time ago by Kolotyrkin and co-workers, but their experimental results were subjected to serious criticism which is taken care of in the present paper. The chemical reaction is potential- and pH-independent and, depending on the actual conditions during the corrosion processes (actual potential, pH, etc.), can be of greater or smaller importance in the overall process. The consequences of the existence of this direct chemical reaction of metal with water molecules (i.e. H2O-induced corrosion or chemical corrosion) on pitting and stress corrosion cracking of metals is discussed.
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Florianovich, G.M. and Kolotyrkin, Ya.M.,Dokl. Akad. Nauk SSSR, 1964, vol. 157, p. 422.
Kolotyrkin, Ya.M. and Florianovich, G.M.,Zashch. Met., 1965, vol. l, p. 7.
Kolotyrkin, Ya.M. and Florianovich, G.M.,Elektrokhimiya, 1973, vol. 9, p. 988.
Florianovich, G.M., Kolotyrkin, Ya.M., and Sokolova, L.A.,Proc. 3rd Int. Congr. on Metal Corrosion, Moscow, 1966, p. 190.
Florianovich, G.M., Mikheeva, F.M., and Goryashkin, V.A.,Proc. Symp. on Dissolution of Metals and Alloys, Sofia, 1977, p. 1.
Kolotyrkin, Ya.M. and Florianovich, G.M.,Z Phys. Chem., 1966, vol. 231, p. 145.
Knyazheva, V.M., Kolotyrkin, Ya.M. and Kruzhkovskaya, A.A.,Zashch. Met., 1970, vol. 6, p. 265.
Kolotyrkin, Ya.M. and Florianovich, G.M.,Glasnik Hem. Drustva, Beograd, 1983, vol. 48, p. 125.
Kolotyrkin, Ya.M. and Agladze, T.R.,Zashch. Met., 1967, vol. 3, p. 413.
Kolotyrkin, Ya.M. and Agladze, T.R.,Zashch. Met., 1968, vol. 4, p. 721.
Raichevskii, G.,Izv. Khim. BAN, 1978, p. 11.
Chernikova, L.A., Vigdorovich, V.K., Tsigankova, L.E. and Glotova, R.V.,Zh. Prikl. Khim., 1978, vol. 51, p. 2190.
Staruchin, V.N., Prochorenko, E.N. and Blavatnik, V.M.,Zashch. Met., 1977, vol. 13, p. 120.
Kuznetsova, O.P., Grubenko, T.V. and Zhuk, N.P.,Zashch. Met., 1975, vol. 11, p. 321.
Straumanis, M.E., Welch, G.E. and James, W.J.,J. Electrochem. Soc., 1964, vol. 111, p. 1292.
Marsg, G.A. and Schaschl, E.,J. Electrochem. Soc., 1960, vol. 107, p. 960.
Bogoyavlenskii, V.I. and Korpachev, VS.,Zashch. Met., 1986, vol. 22, p. 39.
Zakroczymski, T. and Szklarska-Smialowska, Z.,J. Electrochem. Soc., 1985, vol. 132, p. 2548.
Vorkapić, L.Z. and Drazić, D.M.,Corros. Sci., 1979, vol. 19, p. 643.
Albery, W.I. and Hitchman, M.L., “Ring-Disk Electrodes,” London: Oxford Univ. Press, 1979, p. 17.
Jansen, L.J.J. and Barendrecht, E.,Electrochim. Acta, 1984, vol. 29, p. 1207.
Popic, J.P., Avramov-Ivić, M. and Drazić, D.M.,J. Serb. Chem. Soc., 1996, vol. 61, p. 1223.
Wagner, C. and Traud, W.,Z. Elektrochem., 1938, vol. 44, p. 391.
Drazić, D.M., Drazić, V.J. and Jevtić, V.,Electrochim. Acta, 1989, vol. 34, p. 1251.
Drazić, V.J. and Drazić, D.M.,J. Serb. Chem. Soc., 1992, vol. 57, p. 917.
Drazić, D.M. and Popić, J.P.,J. Appl. Electrochem., 1999, vol. 29, p. 43.
Tomashov, N.D.,Teoriya korozii i zashchity metallov (The Theory of Corrosion and Protection of Metals), Moscow: Akad. Nauk SSSR, 1959.
Drazić, V.J. and Drazić, D.M.,J. Serb. Chem. Soc., 1995, vol. 60, p. 699.
Korkashvili, T.Sh., Tsionskii, V.M. and Krishtalik, L.I.,Elektrokhimiya, 1979, vol. 15, p. 1383.
Tsionskii, V.M. and Korkashvili, T.Sh.,Elektrokhimiya, 1980, vol. 16, p. 451.
Korkashvili, T.Sh., Tsionskii, V.M. and Krishtalik, L.T.,Elektrokhimiya, 1981, vol. 17, p. 886.
Iofa, Z.A. and Tomashova, G.P.,Zh. Fiz. Khim., 1960, vol. 34, p. 1036.
Iofa, Z.A.,Zashch. Met., 1970, vol. 6, p. 491.
Makrides, A.C. and Hackermann, N.,Ind. Eng. Chem., 1953, vol. 47, p. 1773.
Bailey, R.A. and Peterson, T.R.,Can. J. Chem., 1967, vol. 45, p. 1135.
Bonhoeffer, K.F. and Heusler, K.E.,Z. Elektrohem., 1957, vol. 61, p. 122.
Bockris, J.O’M., Drazić, D.M. and Despić, A.R.,Electrochim. Acta, 1961, vol. 4, p. 325.
Florianovich, G.M., Sokolova, L.A. and Kolotyrkin, Ya.M.,Elektrokhimiya, 1967, vol. 3, pp. 1027, 1359.
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Dedicated to the ninetieth anniversary of Ya.M. Kolotyrkin’s birth.
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Drazić, D.M., Popić, J.P. Chemical dissolution of iron in aqueous solutions. Russ J Electrochem 36, 1043–1050 (2000). https://doi.org/10.1007/BF02757522
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DOI: https://doi.org/10.1007/BF02757522