Relationship between temperature and specific gravity of ethanol solution of urea were measured under various concentrations. Solubility and supersolubility curves of urea to ethanol were obtained. Ethanol was found to be suitable as solvent to the growth of single crystal of urea.

Relationships between temperature and specific gravity of methanol solution of urea were measured under various concentration. Solubility and supersolubility curves to methanol were obtained. It was found that methanol is relatively suitable as solvent to the growth of urea crystal.