separation of miscible and immiscible liquids

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SEPARATION OF IMMISCIBLE

LIQUIDS BY SEPARATING FUNNEL

This is the instrument used to separate a mixture of immiscible liquids.

As the two liquids are separate layersit is easy to separate them.The method is…..

SEPERATING FUNNEL

Methods

• i. Pour the mixture into the funnel.

• ii. Let it stand undisturbed for sometime

so that the layers get separated.

• iii. Open the stopcock of the separating

funnel pour out the lower layer

carefully.• iv. Close the stopcock as

the top layer reaches it.

SEPERATION OF MISCIBLE LIQUIDS BY

DISTILLATION

Distillation

.Distillation is a method of separating mixtures, based on differences in volatilities of components in a boiling liquid mixture.

.Examples: acetone and water, ethanol and water. In acetone water mixture, the boiling point of acetone is 56 𝑜𝐶and that of water is 100 . 𝑜𝐶

Science behind distillation

• i. The low boiling liquid is evaporated first.

• ii. Its vapours are passed through the condenser and changed to pure liquid form.

• iii. This is collected in a beaker from the condenser outlet.

• iv. The other component is left in the flask in pure form .

Working of Distillation