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Q. Glycerine is purified by

KEAMKEAM 2010Organic Chemistry – Some Basic Principles and Techniques

Solution:

Vaccum distillation is to purify liquids which have very high boiling points and those which decompose at or below their boiing points. A water pump or vaccum pump is used to reduce the pressure. This method is used widely in the separation of glycerol from spent lye in soap industry.