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Urea
Molecular formula: CH4N2O
CAS: 57-13-6
Appearance: White powder
Properties:
White shape crystallization or white powder. Melting point 132.7 degree (breakdown). Soluble in water, alcohol and benzene, slightly soluble in ether, insoluble in trichloromethane
Use:
Analytics reagents, stabilizer. Also used in organic synthesis.
We supply reagent grade pharmaceutical grade industrial grade. If you are interested in our products please contact me.
| Test item | Specification | |
| Reagent grade | Pharmaceutical grade | |
| Appearance | Conform | Conform |
| Assay | ≥ 99.0 | ≥ 99.0 |
| Clarity test | Conform | Conform |
| Water insoluble/% | ≤ 0.005 | ≤ 0.02 |
| Ignition residue/% | ≤ 0.01 | ≤ 0.02 |
| Chloride (Cl)/% | ≤ 0.0003 | ≤ 0.001 |
| Sulfate (SO4)/% | ≤ 0.001 | ≤ 0.005 |
| Ammonia (NH4)/% | ≤ 0.005 | ≤ 0.005 |
| Ferric (Fe) /% | ≤ 0.0002 | ≤ 0.0005 |
| Heavy metal(Pb) /% | ≤ 0.0002 | ≤ 0.0005 |
| C2H5N3O2 /% | ≤ 0.2 | ≤ 0.4 |
Urea
