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Product name |
Urea |
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Specification |
Reagent grade |
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Molecular formula |
CO(NH2)2 |
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CAS |
57-13-6 |
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H.S. CODE |
3102100090 |
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Molecular weight |
60.05 |
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Appearance |
White crystal powder |
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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
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Test items |
Specification |
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AR grade |
CP grade |
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Appearance |
White crystal powder |
White crystal powder |
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Assay |
≥99.0% |
≥99.0% |
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Appearance of solution |
Conform |
Conform |
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Water insoluble |
≤0.005% |
≤0.02% |
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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% |
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Iron |
≤0.0002% |
≤0.0005% |
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Heavy metals |
≤0.0002% |
≤0.0005% |
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|
≤0.2% |
≤0.4% |
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Storage：
Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.
