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Chemical Formula: 5(NH4)2OWO3. 5H2O
Description: White crystal
Purity: ≥ 88.5%
Packing: 100kg or 200kg per iron drum
CAS No: 11120-25-5

Application:

Ammonium paratungstate, or APT, is the intermediate product of the tungsten industry and the main raw material for tungsten oxide production. APT is slightly soluble in water, stable under normal temperatures, but starts to decompose into WO3 at 25C.



Content
APT-0
(max % wt.)
APT-1
(max % wt.)
APT-2
(max % wt.)
WO3
>88.5
>88.5
>88.5
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
0.001
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