Evaluation of Dissolution Properties of Metal Oxides by Modeling

摘要

Corrosion products of metals comprising of oxides protect metals from corrosion, and it is thought that less soluble and more compact oxide films may provide a higher degree of protection. This investigation developed a model of the kinetics of oxide dissolution by assuming that the transfer of the lattice metal and oxide ions to solution combines to keep the electric neutrality. The model reproduced the time changes in the concentrations of metals dissolved from CuO and magnetite in chelating agent solutions and the peaking dissolution rate at a pH.