Sodium metavanadate explained

Sodium metavanadate is the inorganic compound with the formula NaVO₃.^[1] It is a yellow, water-soluble salt.

Sodium metavanadate is a common precursor to other vanadates. At low pH it converts to sodium decavanadate. It is also precursor to exotic metalates such as [γ-PV₂W₁₀O₄₀]^5-, [α-PVW₁₁O₄₀]^4-, and [β-PV₂W₁₀O₄₀]^5-.^[2]

Minerals

Sodium metavanadate occurs as two minor minerals, metamunirite (anhydrous) and a dihydrate, munirite. Both are very rare, metamunirite is now known only from vanadium- and uranium-bearing sandstone formations of central-western USA and munirite from Pakistan and South Africa.^[3]

Notes and References

1. Kato. K.. Takayama. E. . Das Entwässerungsverhalten des Natriummetavanadatdihydrats und die Kristallstruktur des beta-Natriummetavanadats. The dehydration activity of sodium metavanadate dihydrate and the crystal structure of β-sodium metavanadate. Acta Crystallogr.. 1984 . B40 . 2. 102–105. 10.1107/S0108768184001828. 1984AcCrB..40..102K.
2. Book: 10.1002/9780470132586.ch17. Vanadium(V) Substituted Dodecatungstophosphates. 2007. Domaille. Peter J.. Inorganic Syntheses . 27 . 96–104. 9780470132586.
3. Web site: Munirite. Mindat.