Product name |
Urea |
Specification |
Reagent grade |
Molecular formula |
CO(NH2)2 |
CAS |
57-13-6 |
H.S. CODE |
3102100090 |
Molecular weight |
60.05 |
Appearance |
White crystal powder |
Package |
25KG Woven bags or fiber drums |
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Property:
White shape crystallization or white powder. Melting point 132.7 ℃ (breakdown). Soluble in water, alcohol and benzene, slightly soluble in ether, insoluble in trichloromethane
Application:
Analytics reagents, stabilizer. Also used in organic synthesis.
Test standard:GB/T 696-2008
Test items |
Specification |
||
AR grade |
CP grade |
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Appearance |
White crystal powder |
White crystal powder |
|
Assay |
≥99.0% |
≥99.0% |
|
Appearance of solution |
Conform |
Conform |
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Water insoluble |
≤0.005% |
≤0.02% |
|
Residue on ignition |
≤0.01% |
≤0.02% |
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Chloride |
≤0.0003% |
≤0.001% |
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Sulfate |
≤0.001% |
≤0.005% |
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Ammonium |
≤0.005% |
≤0.005% |
|
Iron |
≤0.0002% |
≤0.0005% |
|
Heavy metals |
≤0.0002% |
≤0.0005% |
|
≤0.2% |
≤0.4% |
Storage:
Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.