Question
GeneralGeneralGeneral

what is chloro alkali process?

Verified Answer

The chlor-alkali process is an industrial method used to produce chlorine gas (Cl₂), hydrogen gas (H₂), and sodium hydroxide (NaOH) by the electrolysis of an aqueous solution of sodium chloride (brine).

Products of the Chlor-Alkali Process:

  • Chlorine (Cl₂) – Produced at the anode.

  • Hydrogen (H₂) – Produced at the cathode.

  • Sodium hydroxide (NaOH) – Remains in the solution.

Overall Reaction:
2NaCl(aq) + 2H₂O(l) → 2NaOH(aq) + Cl₂(g) + H₂(g)

The process is called chlor-alkali because it produces chlorine and an alkali (sodium hydroxide).

In simple terms: The chlor-alkali process uses electricity to break down salt solution and produce chlorine, hydrogen, and caustic soda, all of which are important industrial chemicals.