Sodium orthovanadate

Sodium orthovanadate
Names

IUPAC name Sodium vanadate(V)
Other names Sodium vanadium oxide
Identifiers
CAS Number	13721-39-6^Y
3D model (JSmol)	Interactive image
ECHA InfoCard	100.033.883
PubChem CID	61671
RTECS number	YW1120000
InChI InChI=1S/3Na.4O.V/q3+1;;3-1;
SMILES [O-][V](=O)([O-])[O-].[Na+].[Na+].[Na+]
Properties
Chemical formula	Na₃V O₄
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)
Solubility in water	22.17 g/100 mL
Solubility	insoluble in ethanol
Structure
Crystal structure	cubic
Thermochemistry
Specific heat capacity (C)	164.8 J/mol K
Std molar entropy (S^o₂₉₈)	190 J/mol K
Std enthalpy of formation (Δ_fH^o₂₉₈)	−1757 kJ/mol
Hazards
Main hazards	Harmful.
NFPA 704	0 3 0
Flash point	Non-flammable
Lethal dose or concentration (LD, LC):
LD₅₀ (median dose)	330 mg/kg (oral, rat)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N (what is ^YN ?)
Infobox references

Sodium orthovanadate is the inorganic compound with the chemical formula Na₃VO₄·2H₂O (sodium orthovanadate dihydrate). It is a salt of the VO3−
4 oxyanion. It is a colorless, water-soluble solid.

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

The salt features tetrahedral VO3−
4 centers linked to octahedral Na⁺ sites.

Acidification of orthovanadate induces condensation to polyoxovanadates, specifically decavanadate.

Vanadates exhibit a variety of biological activities, in part because they serve as structural mimics of phosphates.

...
Wikipedia