Metatungstate
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In chemistry, metatungstate refers to the anion with the formula [W12O40]8- and salts derived from this anion. The term also refers to protonated derivatives of this anion, including [H2W12O40]6-. The unprotonated anion [W12O40]8- has Td symmetry.
See also
- Paratungstate [W12O42]12-, with idealized C2h symmetry.