Glycerine is purified by

Question

Glycerine is purified by (A) vacuum distillation (B) simple distillation (C) steam distillation (D) sublimation

Tardigrade Admin · Accepted Answer

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.

Q. Glycerine is purified by

vacuum distillation

simple distillation

steam distillation

sublimation

solvent extraction

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.