PRODUCT DESCRIPTION

Urea, also known as urea or carbonamide, has a chemical formula of CH4N2O or CO(NH2)2. It is a white crystal, tasteless and odorless, easily soluble in water, ethanol and benzene, and slightly soluble in ether and chloroform. Urea is one of the simplest organic compounds and the main nitrogen-containing end product of protein metabolism and decomposition in mammals and some fish. It can be used as fertilizer, animal feed, explosives, glue stabilizer and chemical raw materials. Because this substance is contained in human urine, it is named urea. As a neutral fertilizer, urea is suitable for all kinds of soils and plants. It is easy to store, easy to use, and has little destructive effect on the soil. It is a chemical nitrogen fertilizer with a large usage. Urea contains 46% nitrogen (N), which is the highest nitrogen content among solid nitrogen fertilizers. Urea is synthesized industrially with ammonia and carbon dioxide under certain conditions.

PRODUCT USE

Medical field

Dermatology uses certain drugs containing urea to increase the moisture content of the skin. For example, the occlusive dressing used for non-surgical nail removal contains 40% urea.

Agricultural field

Urea is a high-concentration nitrogen fertilizer, a neutral and quick-acting fertilizer, and can also be used to produce a variety of compound fertilizers. No harmful substances remain in the soil, and long-term application has no adverse effects. Urea is suitable for use as base fertilizer and topdressing, and is sometimes also used as seed fertilizer. Urea is in molecular form before conversion and cannot be adsorbed by the soil. It should be prevented from being lost with water. After urea is applied to the soil, a small part of the urea dissolves in the soil solution in molecular form and is adsorbed by the soil through hydrogen bonding. The rest is hydrolyzed into ammonium carbonate by the action of urease, and then into carbonic acid and ammonium hydroxide.

Animal husbandry field

Urea has a large yield and low cost, and is an important non-protein nitrogen feed. In 1891, Morgan et al. discovered that urea can synthesize protein in the rumen of ruminants through the action of microorganisms. Therefore, it has the effect of saving protein feed and is suitable as a feed additive for cattle and sheep[8]. Industrial field

(1) Urea can be used as a raw material for the production of melamine, urea-formaldehyde resin, hydrazine hydrate, tetracycline, phenobarbital, caffeine, reduced brown BR, phthalocyanine blue B, phthalocyanine blue Bx, monosodium glutamate and many other products.

(2) Urea has a brightening effect on the chemical polishing of steel and stainless steel, is used as a corrosion inhibitor in metal pickling, and is also used in the preparation of palladium activation solution.