Sodium metavanadate

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Sodium metavanadate
IUPAC name
Sodium trioxovanadate(V)
3D model (JSmol)
ECHA InfoCard 100.033.869
EC Number
  • 237-272-7
RTECS number
  • YW1050000
Molar mass 121.9295 g/mol
Appearance yellow crystalline solid
Density 2.84g/cm3
Melting point 630 °C (1,166 °F; 903 K)
19.3 g/100 mL (20 °C)
40.8 g/100 mL (80 °C)
97.6 J/mol K
113.8 J/mol K
−1148 kJ/mol
Main hazards Toxic, irritant
NFPA 704 (fire diamond)
Flammability code 0: Will not burn. E.g. waterHealth code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformReactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no codeNFPA 704 four-colored diamond
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
98 mg/kg (rat, oral)
Related compounds
Other anions
Sodium orthovanadate
Other cations
Ammonium metavanadate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
Chain of vanadate VO4 tetrahedral units, each sharing two corners

Sodium metavanadate is the inorganic compound with the formula NaVO3.[1] It is a yellow, water-soluble solid. Its natural forms include mineral 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.[2]


  1. ^ Kato, K.; Takayama, E. (1984). "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. B40: 102–105. doi:10.1107/S0108768184001828.
  2. ^ "Munirite". Mindat.