What is urea, and how can it be prepared? Applications and sales of it
Urea, also called carbamide, is a carbonic acid diamide. Its formula is CH4N2O. It has important applications as a fertilizer and feed additive and a raw material for the production of plastics and medicine. It is a colorless, crystalline substance that melts at 132.7 degrees Celsius (271 degrees Fahrenheit) and decomposes before boiling.
It is the main end product of nitrogen in the metabolic breakdown of proteins in all mammals and some fish. It occurs not only in the urine of all mammals but also in their blood, bile, milk and sweat. During the breakdown of proteins, amino groups (NH2) are removed from the amino acids that make up part of the proteins. These amino groups are converted to ammonia (NH3), which is toxic to the body and must therefore be converted to urea by the liver. It is then transported to the kidneys and finally excreted in the urine.
It is commercially produced in several steps, starting with the direct reaction of ammonia with carbon dioxide in a high-pressure, high-temperature reactor. This substance is a very important starting point in several chemical compounds.
Use of urea as a chemical fertilizer
Because nitrogen is high in nitrogen and easily converted to ammonia soil, urea is one of the most concentrated nitrogen fertilizers. An inexpensive compound, it is also incorporated into mixed fertilizers and is also applied alone in the soil or sprayed on foliage. Formaldehyde is given to methylene urea fertilizers, which release nitrogen slowly, continuously, and evenly, once a year. Using this substance to make urea-formaldehyde resin is of secondary importance only in terms of its use as a fertilizer. You can buy urea from any reputable center in Iran, our site can help you in this type of purchase.
