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Barium tungstate
Chemical compound From Wikipedia, the free encyclopedia
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Barium tungstate is an inorganic chemical compound of barium and the tungstate anion.
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Synthesis and properties
Barium tungstate can be obtained from the precipitation reaction between barium nitrate and ammonium paratungstate or sodium tungstate.[5][6]
- Ba(NO3)2 + Na2WO4 → BaWO4↓ + 2 NaNO3
It is a white solid,[1] which at normal conditions forms tetragonal crystals similar to scheelite, CaWO4. Under pressures above 7 GPa, the compound undergoes transformation to a monoclinic structure similar to fergusonite, YNbO4.[7]
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Uses
Barium tungstate can be used as a frequency shifter in laser technology.[8] It has uses in X-ray photography and as a pigment.[4]
References
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