产品详情
医药级尿素
- Urea, for analysis, 99.5%
- 57-13-6
- CH4N2O
|
Test Items |
superior quality |
First grade |
|
Nitrogen content (dry basis) / % |
≥46.3 |
≥46.3 |
|
Biuret / % |
≤0.5 |
≤0.9 |
|
Water / % |
≤0.3 |
≤0.5 |
|
Iron (Fe) / % |
≤0.0005 |
≤0.0005 |
|
Sulfate (SO42 -) / % |
≤0.005 |
≤0.01 |
|
Alkalinity (in NH3) / % |
≤0.01 |
≤0.01 |
|
Water insoluble / % |
≤0.005 |
≤0.01 |