Ammonium Paratungstate
Property
Ammonium Paratungstate is one kind of tungstate. It is customarily entitled APT. English Name: Ammonium Paratungstate. Molecular Formula: 5（NH4）2OWO35H2O.
Ammonium Paratungstate is the white crystal and slightly soluble in water. It is stable in the air under normal temperature but starting to decompose into WO3 at 25oC.
Application
Ammonium Paratungstate is the intermediate product of tungsten industry and the main raw material for tungsten oxide production. When calcination temperature is 700-800℃, we can get tungsten oxide.
Packing
Packed in 100Kg or 200Kg/Iron Drum with inner plastic bag.
CAS No.: 11120-25-5
Export Trade Terms: FOB, CFR or CIF.
Minimum Order Quantity: 5.0Mt.
Terms Of Payment: T/T, L/C at sight or by further negotiation.
Delivery Time: 15 - 25 days after receipt of advance payment or original L/C. |
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Specification
| Item |
APT-0 |
APT-1 |
APT-2 |
Chemical Composition % |
WO3% (Min) |
88.5 |
88.5 |
88.5 |
Impurity
%≤ |
Al |
0.0005 |
0.001 |
0.001 |
As |
0.001 |
0.001 |
0.002 |
Bi |
0.0001 |
0.0001 |
0.0002 |
Ca |
0.001 |
0.001 |
0.001 |
Co |
0.001 |
0.001 |
0.001 |
Cr |
0.001 |
0.001 |
0.001 |
Cu |
0.0003 |
0.0005 |
0.001 |
Fe |
0.001 |
0.001 |
0.002 |
K |
0.001 |
0.0015 |
0.002 |
Mn |
0.001 |
0.001 |
0.001 |
Mg |
0.0007 |
0.001 |
0.002 |
Mo |
0.002 |
0.005 |
0.01 |
Na |
0.001 |
0.0015 |
0.002 |
Ni |
0.0007 |
0.001 |
0.001 |
P |
0.0007 |
0.001 |
0.002 |
Pb |
0.0001 |
0.0001 |
0.0002 |
S |
0.0007 |
0.001 |
0.001 |
Sb |
0.0008 |
0.001 |
0.002 |
Si |
0.001 |
0.001 |
0.003 |
Sn |
0.0001 |
0.0003 |
0.0005 |
Ti |
0.001 |
0.001 |
0.001 |
V |
0.001 |
0.001 |
0.001 |
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