Introduction carbamide is synthetic origined nitrogenous material, NH2 CO NH2. Its nitrogen message is 46.6 %( when pure). At room temperature carbamide is colorless, odorless and tasteless. When it is change state in water it hydrolyzes very slowly to ammonia and ascorbic acid dioxide. Urea today occupies the key thought amongst the various unscathed nitrogenous plant foods by virtue of its highest content which leave a consumption saving in transportation and dispersion cost. The puzzle out of urea synthesis is of immense sizeableness 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 response between liquid ammonia and carbon dioxide gas to get through ammonia carbonate which on the sub sequent vaporisation yield urea and water. The technology and engineering if urea labor has therefore undergone rapid development in the last ogre decades so with the result that stream plants of 1500 MTPD subject matter and level(p) higher have been designed and engineered. The chemical fertilizer manufacturing in India started during the early 40s with only two slight 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 show desiccation 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, enjoin it on our website:
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