Abstract
The hypothesis that water molecules are involved in the anodic dissolution of iron in acidic sulfate solutions is confirmed experimentally. The oxidation of Fe0 iron to Fe+ is shown to proceed in stages: at the first stage, the interaction between the metal and water molecules results in the formation of surface charge-transfer complexes, which then decompose to form the adsorbed OH groups. The charge transfer in the complexes is estimated to be about 0.5.
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Podobaev, A.N., Krivokhvostova, O.V. The First-Stage Kinetics of the Iron Anodic Ionization in Acidic Sulfate Solutions. Protection of Metals 38, 329–332 (2002). https://doi.org/10.1023/A:1019653132621
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DOI: https://doi.org/10.1023/A:1019653132621