Distillation

What Distillation Separates

Distillation is an important method used to separate (i) a volatile liquid from non-volatile impurities dissolved in it, and (ii) two or more liquids that have a sufficient difference in their boiling points. Three variants of the technique are used depending on the substances involved: simple distillation, for a single liquid that boils without decomposing; fractional distillation, for liquids whose boiling points are too close together for simple distillation to separate cleanly; and **distillation under reduced p …