KBr + 3H2O ± 6e- → 3H2 + KBrO3
Electrolysis aqueous solution potassium bromide to produce hydrogen and potassium bromate.
- Cathodic process: 6H+ + 6e- → 3H2
- Anodic process: Br- + 3H2O - 6e- → BrO3- + 6H+