2NaCl + 2H2O ± 2e- → H2 + Cl2 + 2NaOH
Electrolysis aqueous solution sodium chloride to produce hydrogen, chlorine and sodium hydroxide.
- Cathodic process: 2H2O + 2e- → H2 + 2OH-
- Anodic process: 2Cl- - 2e- → Cl2