Question

nelson,s cell process

Answer 1

Principle of Nelson cell: Electrolyte used in this process is aqueous NaCl(Brine).

Process:Nelson cell consists of a "U" shaped perforated steel tube which is quoted with asbestos in inner surface.A carbon rod suspended into it acts as cathode .The electrolyte used is brine solution.The roof of the equipment acts as anode.The asbestos lining separates the cathode and the anode.Steam is sent from the bottom.





NaCl <==> Na+ + Cl- (in solution)

At Cathode 2H2O+2e <==>H2 + 2OH-
Na+ OH- <==> NaOH
At anode 2Cl- --> Cl2 + 2e