What is the process of recrystallization in organic chemistry and how does it contribute to the purification of compounds?

Recrystallization is a technique used in organic chemistry to purify compounds. It involves dissolving a solid compound in a solvent, then allowing it to slowly cool and form crystals. Impurities are left behind in the solution, resulting in a purer compound. This process is effective because different compounds have different solubilities in the solvent, allowing for separation based on their solubility differences.