Q26 of 58 Page 1

In the preparation of soap, a small amount of sodium chloride(common salt) is added to the mixture of fat and sodium hydroxide. The role of common salt is to

Saponification is the reaction of alkaline hydrolysis of ethyl ethanoate. The Ethyl ethanoate is heated by addition of Sodium hydroxide results in formation of Sodium Ethanoate and Ethanol. Thus reaction is used for making soaps.


CH3COOC2H5 + NaOH CH3COONa + C2H5OH


common salt is added to precipitate out the soap during saponification reaction because salt helps in decreasing the solubility of the soap and precipitating it out.

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