Ammonium Paratungstate 5(NH4)2OWO35H2O is one kind of tungstate.white crystal and slightly soluble in water.
Property
Ammonium Paratungstate is one kind of tungstate. It is customarily entitled APT. English Name: Ammonium Paratungstate. Molecular Formula: 5NH42OWO35H2O.
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. |
Specification
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
