Title: Vanadium Trioxide
CAS Registry Number: 1314-34-7
Additional Names: Vanadium sesquioxide; vanadic oxide
Molecular Formula: O3V2
Molecular Weight: 149.88
Percent Composition: O 32.02%, V 67.98%
Line Formula: V2O3
Literature References: Prepd by reduction of V2O5 with hydrogen or carbon monoxide.
Properties: Black powder. On exposure to air it is gradually converted into indigo-blue crystals of V2O4. d 4.87; mp 1940°. Insol in water; difficultly sol in acids.
Melting point: mp 1940°
Density: d 4.87
Use: Catalyst, e.g., when making ethanol from ethylene. |