Draft:Metavanadate
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Last edited by Fishsicles (talk | contribs) 5 months ago. (Update) |
Metavanadate is a polymeric oxyanion of vanadium (V). Often written as its empirical formula VO−3, it actually consists of a linear chain of tetrahedral [VO4]− units, each sharing two corners.[1]
Metavanadate predominates in weakly alkaline solutions of vanadium (V), and can be generated by dissolving vanadium pentoxide in the presence of alkali:
- V2O5 + 2 OH− → 2 VO−3 + H2O
In a similar process to the dissolution of metasilicate, an excess of alkali will break the V−O−V bonds, eventually yielding orthovanadate.[2]
- VO−3 + 2 OH− → VO3−4 + H2O
Notable salts include sodium metavanadate and ammonium metavanadate.
See also
[edit]- Vanadium pentoxide
- Pervanadyl, the oxycation of vanadium (V)
References
[edit]- ^ Pérez-Benítez, Aarón; Bernès, Sylvain (2018). "Redetermination of ammonium metavanadate". Iucrdata. 3 (8). doi:10.1107/S2414314618010805.
- ^ Mutlu, Esra; Cristy, Tim; Graves, Steven W.; Hooth, Michelle J.; Waidyanatha, Suramya (2017). "Characterization of aqueous formulations of tetra- and pentavalent forms of vanadium in support of test article selection in toxicology studies". Environmental Science and Pollution Research. 24 (1): 405–416. Bibcode:2017ESPR...24..405M. doi:10.1007/s11356-016-7803-x. PMID 27726079.