Question

what is chlor-alkali process? Name two products obtained during this process....

Answer 1

When electricity is flowed through Brine solution, then we get Chlorine and Na OH. This process is called Chlor-alkali process.

Answer 2

The chloralkali (chlor-alkali) process is an industrial process which is used in the electrolysis of NaCl.

This process is used in the production of Chlorine and NaOH (sodium hydroxide/caustic soda), which are important chemicals used in the chemical industries.

The electrochemical process is usually carried out in brine solution (aqueous NaCl) and high voltage electricity is passed through it. The process consumes high energy.

Chlorine (Cl-) is oxidized to Chlorine (Cl) at the anode and the Na+ (sodium ion) flows across freely. Water is reduced to Hydrogen gas and hydroxide at the cathode.

Examples – When NaCl is used, NaOH, Hydrogen and Chlorine are produced.

Similarly, when CaCl2 (calcium chloride) or KCl (potassium chloride) is used, the products are calcium or potassium instead of sodium.

Molten NaCl is used to produce sodium metal and chlorine.