V2O5 99

V2O5 99.0% min Si 0.15% max Fe 0.20% max P 0.03% max S 0.01% max As 0.01% max Na2O+K2O 1.0% max

V2O5 98

V2O5 98.0% min Si 0.25% max Fe 0.30% max P 0.05% max S 0.03% max As 0.02% max Na2O+K2O 1.5% max

V2O5 97

V2O5 97.0% min Si 0.25% max Fe 0.30% max P 0.05% max S 0.01% max As 0.02% max Na2O+K2O 1.0% max V2O4 2.5% max