KI + 3H2O ± 6e- → 3H2 + KIO3
Electrolysis aqueous solution potassium iodide to produce hydrogen and potassium iodate.
- Cathodic process: 6H+ + 6e- → H2
- Anodic process: I- + 3H2O - 6e- → IO3- + 6H+