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Electrolysis

 Electrolysis in an electrolyzer :

A flow of seawater or brine between a set of electrodes (anode and cathode) in an electrolyser that is connected to a source of direct current prduces chemical by electrolysis.

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 electrolyser)

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)


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