| Customization: | Available |
|---|---|
| Condition: | New |
| Certification: | ISO9001, GMP, ISO, CE |
|
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| Product | USP Urea | Formula | CH4N2O | |
| Manufacturing Date | 2024.02.06 | Report Date | 2024.02.07 | |
| Expiry Date | 2026.02.05 | Batch No: | 24020609 | |
| Appearance | Colorless prism-shaped crystalline or powder no smell, salty taste, Have long time placed Ammonia. | |||
| Identification | A: Heat about 500mg in a test tube: it liquefies and ammonia is evolved. Continue the heating until the liquid becomes turbid then cool. Dissolve the mass in a mixture of 10ml of water and 1ml of sodium hydroxide solution(1 in10) add I drop of cupric sulfate TS: The solution acquires a reddish-violet color. | |||
| B: Dissolve 100mg in 1ml of water and add 1ml of nitric acid a white crystalline precipitate of urea nitrate is formed. | ||||
| Test Items | Limit | Result | ||
| Residue on ignition | ≤0.01% | 0.0045% | ||
| Melting range | 132 ºC-135ºC | 134ºC | ||
| Alcohol-insoluble matter | ≤0.04% | 0.005% | ||
| Ammonium | ≤0.005% | 0.0015% | ||
| Chloride | ≤0.007% | 0.001% | ||
| Sulfate | ≤0.001% | 0.001% | ||
| Heavy metals | ≤0.002% | 0.0003% | ||
| Loss on drying | ≤1.0% | 0.42% | ||
| Assay | 99.0%-100.5% | 99.38% | ||
| Conclusion After inspection, in lined with the Usp39 and Cp2015 standard. | ||||
5,FAQ:
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