why is crystallisation technique better than evaporation method?

Crystallisation technique for purification is better than evaporation because...

  1. Extent of purification in case of crystallisation technique is very high.
  2. It does not require very high temperature conditions, there is no need to boil the solvent.
  3. The technique does not require complex apparatus setup for performing the purification.
  4. If the compound is soluble in one solvent & less soluble or insoluble in other solvent, crystallisation can be done by mixing of the two solvents only.

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