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Tungsten Trioxide
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.
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