◆ Tungsten trioxde
Molecular Formula：WO3
Appearance：Light yellow crystallized powder．
Sieve Size：250um(-60mesh)
Apparent Density：2.5-3.0g/cm3．
Apphcation：material used as the raw material for
cemented carbide tungsten powder
W-Base a11oy vacuum electronic device
and electro-optical device and chemical
industry as well.
Grade |
WO3-1 |
WO3-2 |
Purity Min.(%) |
99.98 |
99.95 |
Content of other Chemical,Element Max.(%) |
Al |
0.0005 |
0.0005 |
As |
0.001 |
0.001 |
Bi |
0.0001 |
0.0001 |
Ca |
0.001 |
0.001 |
Co |
0.001 |
0.001 |
Cr |
0.001 |
0.001 |
Cu |
0.0005 |
0.0005 |
Fe |
0.001 |
0.001 |
K |
0.001 |
0.0015 |
Mg |
0.0005 |
0.001 |
Mn |
0.0005 |
0.0005 |
Mo |
0.002 |
0.005 |
Na |
0.001 |
0.0015 |
Ni |
0.0007 |
0.0007 |
P |
0.0005 |
0.001 |
Pb |
0.0001 |
0.0001 |
S |
0.0007 |
0.0007 |
Sb |
0.001 |
0.001 |
Si |
0.001 |
0.001 |
Sn |
0.0001 |
0.0003 |
Ti |
0.001 |
0.001 |
V |
0.001 |
0.001 |
|
