Anodic Dissolution of Titanium in Acidic Sulfate Solutions: II . Effects of Ti(III) and Ti(IV) Ions

At an active‐state titanium electrode, Ti(IV) ions are reduced to Ti(III), and the reduction reaction is first order with respect to the concentration of Ti(IV) ions. The current density corresponding to the reduction reaction adds algebraically to the current densities corresponding to the active‐state dissolution of the metal to form Ti(III) ions in solution and to the hydrogen evolution reaction. At constant potential, the rates of the latter...