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2012年2月29日星期三
Urea pure Ph. Eur., USP in Good Quality
Product name: Urea pure Ph. Eur., USP
CAS-No.: 57-13-6
Assay (from N): 99.0 - 100.5 %
Heavy metals (as Pb): max. 0.001 %
Melting range: 132 - 135°C
Sulfated ash: max. 0.1 %
Description of Urea pure Ph. Eur., USP:
Urea or carbamide is an organic compound with the chemical formula (NH2)2CO. The molecule has two amine (-NH2) residues joined by a carbonyl (-CO-) functional group.
Urea plays an important role in the metabolism of nitrogen-containing compounds by animals, and is the main nitrogen-containing substance in the urine of mammals. Being solid, colourless, odorless, neither acidic nor alkaline, highly soluble in water, and relatively non-toxic, urea is widely used in fertilizers as a convenient source of nitrogen. Urea is also an important raw material for the chemical industry.
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