Electrochlorination
Reaction
The direct current, passing through the seawater or
brine flowing in the electrochlorinator (electrolyzers), where the sodium
chloride is completely dissociated into the ions Na+ and
Cl-, causes the following electrochemical and chemical reactions:
Reaction at the Electrochlorinators Anode
2Cl- ----> Cl2 + 2e- (chlorine generation
in the electrolyzer)
Reaction at the Electrochlorinator Cathode
2H2O + 2e- ----> H2 + 2OH- (hydrogen evolution from electrochlorinator)
Chemical Reaction in Electrolyzer
Cl2 + 2OH- ----> Cl- + ClO- + H2O
NaCl + H2O = NaOCl + H2 (hypochlorite or hypo
generation) |
