|
Product name |
Urea |
|
Specification |
Pharmaceutical grade (USP,BP,EP,CP) |
|
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 |
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：
|
Test items |
Specification |
||
|
BP2015 |
USP35 |
CP2015 |
|
|
Appearance |
White crystal powder |
White crystal powder |
White crystal powder |
|
Assay |
98.5~101.5% |
98.5~101.5% |
≥99.5% |
|
Appearance of solution |
Conform |
|
|
|
Melting point |
|
132~135℃ |
132~135℃ |
|
Alkaline |
Conform |
|
|
|
Residue on ignition |
|
≤0.1% |
≤0.1% |
|
Ethanol insoluble matter |
|
≤0.04% |
Conform |
|
Chloride |
|
≤0.007% |
≤0.007% |
|
Sulfate |
|
≤0.010% |
≤0.01% |
|
≤0.1% |
|
|
|
|
Ammonium |
≤0.05% |
|
|
|
Heavy metal |
≤0.001% |
≤0.002% |
≤0.002% |
|
Loss on dry |
≤1.0% |
|
|
|
Sulfated ash |
≤0.1% |
|
|
|
Bacterial endotoxin |
|
Conform |
|
Storage：
Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.
