Separating solids from liquids – evaporation

Evaporation is used to separate a soluble solid from a liquid. For example, copper sulfate is soluble in water – its crystals dissolve in water to form copper sulfate solution. During evaporation, the water evaporates away leaving solid copper sulfate crystals behind.

A solution is placed in an evaporating basin and heated with a Bunsen burner

A solution is placed in an evaporating basin and heated with a Bunsen burner.