Purifying Compounds by Recrystallization

Source: Laboratory of Dr. Jimmy Franco - Merrimack College

Recrystallization is a technique used to purify solid compounds.¹ Solids tend to be more soluble in hot liquids than in cold liquids. During recrystallization, an impure solid compound is dissolved in a hot liquid until the solu...

Recrystallization is a purification technique for solid compounds.

To perform recrystallization, an impure solid compound is mixed with hot solvent to form a saturated solution. As this solution cools, the solubility of the compound decreases, and pure crystals grow from solution.

Recrystallization is often used as a final step after...