Question

Explain chlor-alkali process.

Answer 1

When electricity is passed through an aqueous solution of sodium chloride it decomposes to form sodium hydroxide. The process is called the chlor-alkali alkali process because of the products formed: chlor for chlorine and alkali for Sodium Hydroxide. Chlorine gas is given off at the anode and hydrogen gas at the cathode.

An aqueous solution of sodium chloride is called brine.

2NaCl (aq) + 2H2O(l) ---(electrolysis)---> 2NaOH(aq) + Cl2(g) + H2(g).

Answer 2

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The chloralkali process (also chlor-alkali and chlor alkali) is an industrial process for the electrolysis of sodium chloride. It is the technology used to produce chlorine and sodium hydroxide (lye/caustic soda), which are commodity chemicals required by industry.

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