Grade and Chemical Composition:
| Grade |
WO3 (%,min) |
Impurities (%,max ) |
| Al |
As |
Bi |
Ca |
Mg |
Cu |
K |
Na |
| WO3-1 |
99.95 |
0.0005 |
0.001 |
0.0001 |
0.0015 |
0.0005 |
0.0003 |
0.001 |
0.001 |
| WO3-2 |
99.5 |
0.0015 |
0.01 |
-- |
0.01 |
0.01 |
-- |
0.005 |
0.005 |
| Impurities (%,max) |
| Fe |
Mn |
Mo |
Ni |
P |
Pb |
S |
Sb |
Si |
Sn |
Ti |
| 0.001 |
0.0005 |
0.002 |
0.0007 |
0.0007 |
0.0001 |
0.0007 |
0.0003 |
0.001 |
0.0001 |
0.001 |
| 0.04 |
-- |
0.03 |
-- |
0.004 |
-- |
0.006 |
-- |
0.005 |
-- |
-- |
| Grade |
WO3 (%,min ) |
Apparent density (g/cm3) |
Average size(Fsss.)u |
Screen size(mesh) 100% |
| WO3-1 |
99.95 |
2~2.8 |
7~16 |
-40 |
| WO3-2 |
99.5 |
0.6~1.0 |
0.6~1.5 |
|
Packing:In iron drums lined with two plastic bags of 100 or 200 kgs net each.
Note:Any particular requirements to the products can be discussed.
sales@chinatungsten.com;