Glycerol is purified by - Vidyadip

MCQ

Glycerol is purified by

A
Steam distillation
✓
Vacum distillation
C
Sublimation
D
Simple distillation

✓

Answer

Correct option: B.

Vacum distillation

b
The liquids which decompose at its boiling point can be purified by vacuum distillation. Glycerol decomposes at its boiling point $(563\, K$ ). It can be distilled by vacuum distillation without decomposition at $453 \,K$ and under $12\, mm \,Hg$ pressure.

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