尿素

Chinese alias: Urea,Carbon amide,Carbonyl diamine Molecular formula: CON2H4, (NH2) 2CO or CN2H4O Molecular weight: 60.06 CAS No.: 57-13-6 EINECS No.: 200-315-5 Melting point: 132-135 degrees Nitrogen content: ≥ 46.4% The relative density of: 1.323 (20 4degrees) Density: 1.335g/cm3 Water-soluble: 1080g/L(20degrees) Physicochemical properties: white crystal.Heated to melting point (≥ 160 degrees) above to produce ammonia at the same time into cyanate.Soluble in water, alcohol, insoluble in ether and chloroform.Was slightly alkaline. Because in human urine containing this substance, so called urea, is a solid nitrogen in the nitrogen content the highest. Uses: mainly used for urea fertilizer. Industry is also used for the production of urea-formaldehyde resin, polyurethane, melamine - formaldehyde resin raw material, medicine, explosives, tanning, flotation agent, paint and petroleum products, dewaxing, etc. There are also extensive to make passers-by.