Vanadium(III) oxide (V2O3)-Powder

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.