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  • Esters are sweet-smelling substances and are used in making perfumes. Suggest some activity and the reaction involved for the preparation of an ester with well labeled diagram.

Esters are sweet-smelling substances and are used in making perfumes. Suggest some activity and the reaction involved for the preparation of an ester with well labeled diagram.

Answers (1)

Reaction Set up:

  • Take 1 ml ethanol (absolute alcohol) and 1 ml glacial acetic acid and few drops of concentrated sulphuric acid in a test tube.
  •  Warm the test tube in a water-bath for at least five minutes.
  •  Pour the contents of the test tube into a beaker containing 20-50 mL of water and smell the resulting mixture.

Sweet smell confirms presence of an ester.

Reaction mixture:

Ethanoic acid + Alcohol in the presence of concentrated Sulphuric Acid

Reaction:

CH_3COOH + CH_3CH_2OH \overset{H_{2}SO_4}{\rightarrow}CH_3COOC_2H_5 + H_2O

The confirmation Test for ester formation is a sweet smell.

Posted by

infoexpert21

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