Properties | More Info | Isotopes | Spectra
Compounds | Reactions | Production
Atomic: M.A.C. | Reference
Diagrams: Shell | Atomic Radius | Electron || Images
Reactions of Vanadium
Reactions with water
The surface of vanadium metal is protected by an oxide layer and does not reacts with water under normal conditions.
Reactions with air
Vanadium metal reacts with excess oxygen upon heating to form vanadium(V) oxide.
  4V(s) + 5O2(g)V2O5(s)
Reactions with halogens
Vanadium reacts with fluorine upon warming to form vanadium(V) fluoride.
  2V(s) + 5F2(g)2VF5(l)
Reactions with bases
Vanadium metal is resistant to attack by molten alkalis.
 
Reduction Potentials
Balanced half-reaction E0 / V
V3+ + e-V2+ -0.256
V3+ + e-V2+ -0.21
V2+ + 2e-V(s) -1.18
2VO43- + 10H+ + 4e-V2O3 + 5H2O +1.238
VO43- + 6H+ + 2e-VO+ + 3H2O +1.256
VO2+ + 2H+ + e-VO2+ + H2O +1.00
V2O5 + 6H+ + 2e-2VO2+ + 3H2O +0.998
V2O4 + 4H+ + 2e-2VO+ + 2H2O +0.246
VO2+ + 2H+ + e-V3+ + H2O +0.359
VO2+ + H+ + e-VOH2+ +0.164
VO2+ + e-VO+ -0.044
V2O3 + 6H+ + 2e-2V2+ + 3H2O +0.161
VO+ + 2H+ + e-V2+ + H2O +0.126
VOH2+ + H+ + e-V2+ + H2O -0.082
V(OH)4+ + 2H+ + e-VO2+ + 3H2O +1.00
V(OH)4+ + 2H+ + e-VO2+ + 3H2O +1.02
V(OH)4+ + 2H+ + e-VO2+ + 3H2O +1.02