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Urea   /jərˈiə/   Listen
Urea

noun
1.
The chief solid component of mammalian urine; synthesized from ammonia and carbon dioxide and used as fertilizer and in animal feed and in plastics.  Synonym: carbamide.



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"Urea" Quotes from Famous Books



... instrumental in forming organic compounds. For this reason none of these substances, it was thought, could be built up in the laboratory, although many had been analyzed. In 1828 the first organic compound, urea, was artificially prepared, and since then thousands have been synthesized. They are not necessarily manufactured from organic products, but can be made from ...
— An Introduction to Chemical Science • R.P. Williams

... theobromine have also quite different relations. Caffeine, it will be remembered, is the methyl ester of theobromine, and can be prepared from it. When caffeine is carefully oxidized with chlorine, it yields dimethyl-alloxan and methyl-urea. Both theobromine and caffeine are decomposed by heating to 240 deg. C. in sealed tubes with hydrochloric acid, identical products being obtained. These products are carbon dioxide, formic acid, ammonia, methyl-amine, ...
— Scientific American Supplement, No. 415, December 15, 1883 • Various



Words linked to "Urea" :   organic compound, urea-formaldehyde resin, carbamide



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