Why crystallisation is better than evaporation
Answers
=> Crystallization is a process that separates a pure solid in the form of its crystals from a solution.Crystallization is better than evaporation because during Evaporation:
1) During Evaporation some solids decompose or some, like sugar may get charred on heating to dryness.
2) And also some impurities may remain dissolved in the solution even after filtration, which on evaporation contaminates the solid.
Crystallisation is considered better than the process of evaporation due to the following reasons:
● Not all materials are suitable for the process of evaporation because some substances maybe sensitive to high temperatures and may not be converted and the result may not be as per the requirements.
● Secondly, in the process of evaporation the chances of getting the residual impurities in the final product is high as the Residue may have some impurities left after the process is completed but these chances are less or negligible in the process of crystallization.
In the process of crystallization, the liquid is crystallized and in evaporation the liquid substance is evaporated to get the final results.