Lithium tungstate
- CAS number
- 13568-45-1
- Molecular weight
- 261.72
- Molecular formula / chemical symbol
- Li2WO4
Description
Lithium tungstate is the inorganic compound with the formula Li2WO4. It is a white solid that is soluble in water. The compound is one of the several orthotungstates, compounds that feature the tetrahedral WO42- anion.
The salt consists of tetrahedrally coordinated Li and W centres bridged by oxides. The W-O and Li-O bond distances are 1.79 and 1.96 ?, respectively. These differing bond lengths reflect the multiple bond character of the W-O interaction and the weaker ionic bonding between the Li-O interactions. The solid undergoes phase transitions at high pressures, such that the coordination geometry at tungsten becomes octahedral (six W-O bonds). For example at 40 kilobars, it adopts a structure related to wolframite.
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Lithium tungstate |
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Properties |
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Li2O4W |
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Appearance |
white solid |
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4.56 g/cm3 |
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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USES
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