Write a short note on distillation under reduced pressure.

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Monjur Alahi

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2025-01-04 04:42

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Liquids having very high boiling points or which decompose on heating are purified by the method of distillation under reduced pressure.
In this method, the liquid is made to boil at a temperature lower than its normal boiling point by reducing the pressure on its surface.
The external pressure is reduced using a water pump or vacuum pump, e.g. Glycerol can be separated from soap by using this method.