Molecular formula: CH4N2O
Molecular weight: 60.06
Properties: White column or white powder. Melting point is 132.7℃ (breaks down). Soluble in water, ethyl alcohol and benzene, slightly soluble in ether, insoluble in trichloromethane.
Uses: As analytical reagent and stabilzier. It can be used in organic synthesis.
Standard: The maximum content of impurities is in percentage content
Standard/item |
Analytical pure-AR
|
Chemical pure-CP
|
Assay /%
|
≥99.0
|
≥99.0
|
Clarity test
|
Qualified
|
Qualified
|
Water insoluble matter/%
|
≤0.005
|
≤0.02
|
Ignition residue (Sulfate)
|
≤0.01
|
≤0.02
|
Chloride(Cl)
|
≤0.0005
|
≤0.001
|
Sulfate(SO4)
|
≤0.001
|
≤0.005
|
Ammonia (NH4)
|
≤0.005
|
≤0.005
|
Iron (Fe)
|
≤0.0002
|
≤0.0005
|
Heavy metal(Pb)
|
≤0.0002
|
≤0.0005
|
Biuret (C2H5N3O2)
|
≤0.2
|
≤0.4
|
Packing: Woven bag, kraft bag or fiber drum lined with plastic, net weight is 25kg.
|