Chemistry Experiments / Distillation

Distillation Experiment

Separate miscible liquids with different boiling points or purify a liquid containing dissolved impurities.

Chemistry Class 11-12 Separation-techniques Intermediate
Prelab Brief
To separate a mixture of two miscible liquids with a sufficient difference in boiling points, or to purify a liquid by distillation.
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Theory

Separate miscible liquids with different boiling points or purify a liquid containing dissolved impurities. To separate a mixture of two miscible liquids with a sufficient difference in boiling points, or to purify a liquid by distillation.

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Formula

Principle: To separate a mixture of two miscible liquids with a sufficient difference in boiling points, or to purify a liquid by distillation.

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Aim

To separate a mixture of two miscible liquids with a sufficient difference in boiling points, or to purify a liquid by distillation.

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Apparatus

  • Distillation flask
  • Thermometer
  • Liebig condenser
  • Receiving flask
  • Bunsen burner
  • Cork with holes
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Procedure

  1. Place the mixture into the distillation flask.
  2. Fit the flask with a thermometer and connect it to the Liebig condenser.
  3. Place the receiving flask at the end of the condenser.
  4. Heat the flask gently. The liquid with the lower boiling point evaporates first.
  5. The vapors pass through the condenser, cool down, and liquefy.
  6. The pure liquid (distillate) collects in the receiving flask.
Pre-Lab Questions
What is the main aim of the Distillation Experiment?
Which principle is demonstrated in the Distillation Experiment?
What apparatus is required for this experiment?
Why is Distillation flask used in this experiment?
What formula or relationship is verified in this experiment?
What precaution should be followed while performing this experiment?
What conclusion can be drawn from the Distillation Experiment?

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