Molecular formula: Na2MOO4·2H2O
Molecular weight: 241.95
Properties: White crystal. Lose water of crystallization at 100℃. Relative density is 3.28. Melting point is 687℃ (anhydride). Easily soluble in water.
Uses: As analytical reagent. In measuring alkaloid and phosphorus.
Standard: The maximum content of impurities is in percentage content
Standard/item |
Analytical pure-AR
|
Chemical pure-CP
|
Assay[Na2MOO4·2H2O] /%
|
≥99.0
|
≥98.5
|
Clarity test
|
Qualified
|
Qualified
|
Water insoluble matter/%
|
≤0.01
|
≤0.02
|
Chloride(Cl) /%
|
≤0.005
|
≤0.01
|
Sulfate(SO4) /%
|
≤0.001
|
≤0.002
|
Phosphate(PO4) /%
|
≤0.001
|
≤0.003
|
Nitrate (NO3)/%
|
≤0.005
|
≤0.02
|
Ammonia (NH4)/%
|
≤0.01
|
≤0.02
|
Heavy metal(Pb) /%
|
≤0.001
|
≤0.005
|
Packing: Woven bag, kraft bag or fiber drum lined with plastic, net weight is 25kg.
|