Question
Wed March 09, 2011 By: Bhanu Marwaha
 

sir/mam, I want you to ask that which reaction for saponification reaction is correct as it is different in text book and refresher.

Expert Reply
Wed March 09, 2011
Dear Student
 

Soap is produced by the saponification (hydrolysis) of a triglyceride (fat or oil). (See Figure 1.) In this process the triglyceride is reacted with a strong base such as sodium or potassium hydroxide to produce glycerol and fatty acid salts. The salt of the fatty acid is called a soap.

Fatty acids are straight-chain monocarboxylic acids. The most common fatty acids range in size from 10-20 carbons and most often have an even number of carbon atoms including the carboxyl group carbon. The carbon-carbon bonds in saturated fatty acids are all single bonds, while unsaturated fatty acids have one or more carbon-carbon double bonds in their chains. One example of a saturated fatty acid is palmitic acid, CH3-(CH2)14-CO2H.

 

 
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