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nature : also known as carbon amide, urea. For pure colorless, odorless, needle or prismatic crystals. Because of industrial products containing impurities, slightly reddish. 1.335g/cm3 density. 132.7 ° C melting point, melting point than the beginning decomposition temperature, dissolved in water, ethanol and benzene. Exist in human and mammalian urine. Commodities urea ammonia and carbon dioxide used as raw materials in high-temperature, high-pressure synthesis under obtained (see synthesis of urea). Urea nitrogen content 46%, the nitrogen fertilizer for agriculture. In industry as animal feed additives, the manufacture of explosives, stabilizer and urea - formaldehyde resin. 1.63% aqueous solution of such exudate. Dissolution of horny medicine, dehydration diuretic drug. With the role and sorbitol. Dehydration fast and strong (15 ~ 30 min), but to maintain a short time (3 to 4 hours). After regular use of secondary brain volume increased intracranial pressure and rebound rebound, there is the injection after 3 to 4 hours, to be added to other drugs dehydration. Preparations for the injection.
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