Characteristic

 

Vanadium(III) oxide is the inorganic compound with the formula V₂O₃. It is a black solid prepared by reduction of V₂O₅ with hydrogen or carbon monoxide. It is a basic oxide dissolving in acids to give solutions of vanadium (III) complexes. V₂O₃ has the corundum structure. It is antiferromagnetic with a critical temperature of 160 K.  At this temperature there is an abrupt change in conductivity from metallic to insulating.

Chemical formula:V₂O₃

Molar mass:149.881 g/mol

Appearance:Black powder

Density:4.87 g/cm³

Melting point:1,940 °C (3,520 °F; 2,210 K)

Solubility in other solvents:Insoluble

Magnetic susceptibility (χ):+1976.0·10−6 cm3/mol

Crystal structure:Trigonal (karelianite)

 

Application

 

Vanadium(III) oxide catalyzes the direct fluorination reactions. It is used in the coating of carbon nanotubes and as an electrode in lithium ion batteries.

V2O3_MSDS.pdf