Мочевина азотнокислая Granular Urea N-46%, Киев

Urea or carbamide is an organic compound with the chemical formula CO(NH2)2. Urea serves an important role in the metabolism of nitrogen-containing compounds by animals and is the main nitrogen-containing substance in the urine of mammals. It is a colorless, odorless solid, highly soluble in water and practically non-toxic. Dissolved in water, it is neither acidic nor alkaline. The discovery in 1828 that urea can be produced from inorganic starting materials was an important conceptual milestone in chemistry, as it showed for the first time that a substance previously known only as a byproduct of life could be synthesized in the laboratory without any biological starting materials, contradicting the widely held doctrine of vitalism. For use in industry, urea is produced from synthetic ammonia and carbon dioxide. More than 90% of world industrial production of urea is destined for use as a nitrogen-release fertilizer. Urea, a white crystalline solid containing 46% nitrogen, is widely used in the agricultural industry as an animal feed additive and fertilizer Here we discuss it only as a nitrogen fertilizer. Commercially, fertilizer urea can be purchased as prills or as a granulated material. Urea has the highest nitrogen content of all solid nitrogenous fertilizers in common use. Therefore, it has the lowest transportation costs per unit of nitrogen nutrient. Urea is also a raw material for the manufacture of two main classes of materials: urea-formaldehyde resins and urea-melamine-formaldehyde used in marine plywood.

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Характеристики мочевины азотнокислой Granular Urea N-46%

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