Experiment of electrolysis of sodium chloride solution
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Sodium Hydroxide (NaOH): Sodium hydroxide is a strong base. It is also known as caustic soda or Iye. It is obtained by the electrolytic decomposition of solution of sodium chloride (brine). In the process of electrolytic decomposition of brine (aqueous solution of sodium chloride), brine decomposes to form sodium hydroxide. In this process, chlorine is obtained at anode and hydrogen gas is obtained at cathode as byproducts. This whole process is known as Chlor-Alkali process.
2NaCl + 2H2O ⇨ 2NaOH + Cl2 + H2
Use of products after the electrolysis of brine:
▶Hydrogen gas is used as fuel, margarine, in making of ammonia for fertilizer, etc.
▶Chlorine gas is used in water treatment, manufacturing of PVC, disinfectants, CFC, pesticides. It is also used in manufacturing of bleaching powder and hydrochloric acid.
▶Sodium hydroxide is used for de-greasing of metals, manufacturing of paper, soap, detergents, artificial fibres, bleach, etc.
2NaCl + 2H2O ⇨ 2NaOH + Cl2 + H2
Use of products after the electrolysis of brine:
▶Hydrogen gas is used as fuel, margarine, in making of ammonia for fertilizer, etc.
▶Chlorine gas is used in water treatment, manufacturing of PVC, disinfectants, CFC, pesticides. It is also used in manufacturing of bleaching powder and hydrochloric acid.
▶Sodium hydroxide is used for de-greasing of metals, manufacturing of paper, soap, detergents, artificial fibres, bleach, etc.
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