Urea or carbamide (NH2CONH2) is a chemical compound that naturally occurs in the metabolism of mammals. It can also be created from natural gas and air. Urea plays a vital role in the metabolism of humans as a nitrogen waste transporter, but is mostly know from its fertilizer appliances.
Industrial urea is made from natural gas and air that are compressed under high temperature (210░C ). Several chemical reactions occur, resulting in a mixture of ammonia, ammonium carbonate and urea. This mixture is dehydrated to form urea in a crystal or powdered form. The powder and crystals can be melted and made into prills, which is the common form for urea distribution.