12.20    What is the difference between distillation, distillation under reduced pressure and steam distillation ?

Answers (1)
M manish

The difference between distillation, distillation under reduced pressure and steam distillation are-

Distillation Distillation under reduced pressure Steam Distillation

1. Used for the purification of the compounds that are non-volatile impurities or liquids, which don't decompose on boiling.

 

1. Used to purify liquids, which tends to decompose on boiling. Under the condition of reduced pressure.

 

1.Used to purify the organic compounds, which is steam volatile and immiscible with water.

 

SImply, to separate the volatile liquids from non-volatile impurities. Or a mixture of liquids having sufficient Boiling point difference.

The liquid will boil at low temperature than its boiling points, therefore, it does not decompose. The mixture of water and aniline can be separated by this method.

 

 The mixture of petrol and kerosene is separated by this method.

Glycerol is purified by this method.  

 

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