What is Tungsten Oxide
Tungsten oxide also called tungsten trioxide, including yellow tungsten oxide (YTO, WO3), blue tungsten oxide (BTO, WO2.9), violet tungsten oxide (VTO, WO2.72or W18O49) and brown tungsten oxide(tungsten dioxide, WO2).
Tungsten oxide is a chemical compound containing oxygen and the transition metal tungsten. It is obtained as an intermediate in the recovery of tungsten from its minerals.[1] Tungsten ores are treated with alkalis to produce WO3. Further reaction with carbon or hydrogen gas reduces tungsten trioxide to the pure metal.Tungsten oxide is obtained from the minerals scheelite, wolframite, ferberite. It is insoluble in H2O and acids, but soluble in hot alkalis.
How to Order Tungsten Oxide
1. Spec.
| Product/Synonyms | Chemical Formula | Grain Size (um) | WO3 Content (%) | Color | Analysis |
| Yellow Tungsten Oxide / Tungsten Trioxide / YTO | WO3 | 12~20 | ≥99.95 | Yellow or Yellow Green | Analysis |
| Yellow Tungsten Oxide / Tungsten Trioxide / YTO | WO3 | 0.6~1.8 | ≥99.90 | Bright Yellow | Analysis |
| Blue Tungsten Oxide / BTO | WO2.9 | 12~19 | ≥99.95 | Dark Blue | Analysis |
| Violet Tungsten Oxide / VTO | WO2.72 | 10~18 | ≥95.00 | Dark Violet | Analysis |
| Ammonium Paratungstate / APT | / | / | ≥88.5 | White | Analysis |
| Ammonium Metatungstate / AMT | / | / | ≥90.0 | White | Analysis |
2. Quantity
Since the sensitivity of tungsten oxide, it should be exported with quota which should issue from government whose minimum quantity is 1000kgs. According to different inquiry, we offer different purchasing method as following:
| Quantity /KG | Cost Description (Need to be borne on user's side) | / |
| 0~0.05 | Free sample for research delivery cost + bank fee (USD 30) | Delivery Cost Table A |
| Order | ||
| 0.05~0.99 | Sample cost (USD 90) + bank fee + delivery cost | Delivery Cost Table B |
| Order | ||
| 1.00~10.00 | Sample cost (USD 90/KG)+delivery cost + bank fee | Order |
| 10.00~100.00 | Could be delivered by EMS without quota and SGS certificated only quantity is under 10kgs. Should be delivered separately. | Order |
| 100.00~500.00 | Please discuss with us. | Order |
| 500.00~1,000.00 | Issue quota with 1,000kgs used for exporting 500kgs for example. | Order |
| 1,000.00~ | CIF, at least 30 days needed to issue quota | Order |
3. Special Provisions
Because of sensitivity of tungsten related powder, there are several areas that we are not able to export directly. An alternative port in other country is necessary to provide. Please contact to us, if the end users happened to in these areas.
4. Packing
Iron drums with double plastic bags innered by 100kgs or 200kgs net each. Other packing requirement, please feel free to discuss with us.
If you have any interest in our products, please feel free to contact us. Skype:li.bonnie3 Mob:+8615532807289
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