Crystallization is the process in which a crystal gets formed (which is a solid form) from precipitating a liquid solution or melting or from gas deposition. The crystallization process involves two major steps namely Nucleation and Crystal Growth. Nucleation is process of formation of crystalline phase from either a supercooled liquid or a supersaturated solvent.The capability of molecules to get crystallised strongly depends on the intensity of atomic forces (in the case of mineral substances), intermolecular forces (organic and biochemical substances) or intramolecular forces (biochemical substances). In chemical engineering, crystallization process takes place in a crystallizer. There the Crystallization is related to precipitation, although the result is not amorphous or disordered, but a crystal.