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Where Is Tungsten Oxide From?
- 详细资料
- 分类：Tungsten Information
- 发布于 2015年2月05日 星期四 10:43
- 作者：cq
- 点击数：1494
Tungsten oxide is obtained from the minerals scheelite, wolframite, ferberite. It is insoluble in H2O and acids, but soluble in hot alkalis.
Intermediates, such as tungsten trioxide, tungsten blue oxide, tungstic acid, and ammonium metatungstate can be derived from APT, either by partial or complete thermal decomposition or by chemical attack.
Stoichiometric compounds such as W20O58, W18O49 or WO2 are formed intermediately during the reduction process and can be isolated by interrupting the reduction process at the selected reduction state.
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