Vanadium pentoxide CAS NO:1314-62-1 V2O5 Vanadium pentoxide CAS NO:1314-62-1 V2O5 basic information Molecular weight:181.88 Density:3.35 g/mL at 25℃ Melting point:690℃ Flash point:1750℃ Solubility:1g/125ml PH:4 (50g/l, H2O, 20℃)(slurry)