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PRODUCTS
Anda Nonferrous Metals
Tungsten trioxide
Chemical formula: WO3
Properties: light yellow powder, insoluble in water and acid (except for HF), can slowly dissolved in concentrated alkali solution.
Specifications:
|
Grade
|
FWO3-1
|
FWO3-2
|
FWO3-3
|
|
|
WO3 (%)≥
|
99.95
|
99.9
|
99.5
|
|
|
Impurity content
(as WO) not more than % |
Pb
|
0.0005
|
0.001
|
/
|
|
Bi
|
0.0005
|
0.001
|
/
|
|
|
Sn
|
0.0007
|
0.001
|
/
|
|
|
Sb
|
0.001
|
0.001
|
/
|
|
|
As
|
0.002
|
0.002
|
0.010
|
|
|
Fe
|
0.001
|
0.005
|
0.010
|
|
|
Al
|
0.001
|
0.001
|
0.002
|
|
|
Si
|
0.002
|
0.003
|
0.008
|
|
|
Ni
|
0.0007
|
0.002
|
|
|
|
Ca
|
0.002
|
0.003
|
(Ca+Mg)
0.015 |
|
|
Mg
|
0.001
|
0.004
|
(Mg+Ca)
0.015 |
|
|
K
|
0.002
|
0.002
|
(K+Na)
0.015 |
|
|
Na
|
0.002
|
0.004
|
(Na+K)
0.015 |
|
|
Cu
|
0.0007
|
0.001
|
/
|
|
|
Mn
|
0.001
|
0.002
|
/
|
|
|
Mo
|
0.005
|
0.03
|
0.10
|
|
|
P
|
0.0007
|
0.004
|
0.015
|
|
|
S
|
0.001
|
0.001
|
0.007
|
|
|
Chlorination residue
|
/
|
/
|
0.07
|
|
|
Loss on ignition (%)
|
0.5
|
0.5
|
0.5
|
|
|
Sieving size (mesh)
|
-40 100%
|
-40 100%
|
-40 100%
|
|
|
Bulk density g/cm3
|
0.5-2.5
|
|||
Uses: Used in the manufacture of metal tungsten powder, tungsten carbide powder, tungsten carbide and other tungsten products.
Packing: 25kg Cardboard barrel or plastic woven bag .
Not: special specifications are negotiable.
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