Urea

Introduction carbamide is synthetic origined due northous material, NH2 CO NH2. Its nitrogen message is 46.6 %( when pure). At room temperature carbamide is colorless, odorless and tasteless. When it is turn in water it hydrolyzes very slowly to ammonia and century dioxide. Urea today occupies the key typeset amongst the various square(p) nitrogenous plant foods by virtue of its highest content which brook a consumption saving in transportation and dispersion cost. The puzzle out of urea synthesis is of immense immensity as it was the first organic compound to be synthesized from inorganic compound in laboratory. Wholer obtained urea from ammonium cyanide in 1828. Today various manufacturing process use the chemical reaction between liquid ammonia and carbon dioxide gas to pee ammonia carbonate which on the sub sequent vapor yield urea and water. The technology and engineering if urea exertion has therefore undergone rapid development in the last fie nd decades so with the result that stream plants of 1500 MTPD subject matter and pull down higher have been designed and engineered. The chemical fertilizer manufacturing in India started during the early 40s with only two depressed plants, today it is the fourth producer of fertilizer and occupies the trey position in the fertilizer consumption in world. cook up of Urea Urea is commercially produced by the subscribe to drying up of ammonium carbonate (NH2COONH4) at elevated temperature and pressure. NH2COONH4 is obtained by direct reaction of NH4 and CO2. The two reactions are usually carried out at the same time in a high pressure reactor.
?H = -38000 cal/gmol ?H = +7500 cal/gmol richness of Urea 1.Fertilizer grade urea is mainly employ as fertilizer in the form of prills. 90% of urea produced in India is used...If you want to get a full essay, nightspot it on our website: OrderCustomPaper.com

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