Sodium orthovanadate

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Sodium orthovanadate
IUPAC name
Sodium vanadate(V)
Other names
sodium vanadate (V),
sodium vanadium oxide
13721-39-6 YesY
Jmol 3D model Interactive image
PubChem 61671
RTECS number YW1120000
Molar mass 183.908 g/mol
Appearance white powder
Density 2.16 g/cm3, solid
Melting point 858 °C (1,576 °F; 1,131 K)
22.17 g/100 mL
Solubility insoluble in ethanol
164.8 J/mol K
190 J/mol K
-1757 kJ/mol
Vapor pressure {{{value}}}
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

Sodium orthovanadate is the inorganic compound with the chemical formula Na3VO4.2H2O (sodium orthovanadate dihydrate). It is a salt of the VO43- oxyanion. It is a colorless, water-soluble solid.[1]

Synthesis and structure

Sodium orthovanadate is produced by dissolving vanadium(V) oxide in a solution of sodium hydroxide:

V2O5 + 6 NaOH → Na3VO4 + 3 H2O

The salt features tetrahedral VO43− centers linked to octahedral Na+ sites.[2]


Acidification of orthovanadate induces condensation to polyoxovanadates, specifically decavanadate.[3]

Vanadates exhibit a variety of biological activity, in part because it serves as structural mimics of phosphates.[4][5]


  1. Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 0-08-037941-9.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  2. Kato, K.; Takayama Muromachi, E. "Die Struktur des Trinatriumvanadattrihydrats" Acta Crystallographica, Section C: Crystal Structure Communications 1987, volume 43, p1030-p1032.
  3. W. G. Klemperer, O. Yaghi "Tetrabutylammonium Trihydrogen Decavanadate(V)" Inorganic Syntheses, 1983, Volume 27, p. 83. doi:10.1002/9780470132586.ch15
  4. Korbecki, Jan; Baranowska-Bosiacka, Irena; Gutowska, Izabela; Chlubek, Dariusz "Biochemical and medical importance of vanadium compounds" Acta Biochimica Polonica 2012, vol. 59, pp. 195-200.
  5. Crans, D. C.; Chatterjee, P. B. "Vanadium biochemistry" Reedijk, Jan; Poeppelmeier, Kenneth, Eds. Comprehensive Inorganic Chemistry II (2013), 3, 323-342. doi:10.1016/B978-0-08-097774-4.00324-7

See also