we need vanadium pentoxide 99.5% 2Mt, the full specification is as follows: V2O5    99.5% hydrochloric acid insoluble matter  0.25% loss on lgnition   0.1% chlorid      0.02% sulfate      0.02% Na           0.005% Fe           0.005% P            0.01% S            0.01% Pb           0.005%