ANODIC-OXIDATION OF HYDRAZINE ON GLASSY-CARBON ELECTRODES IN ACETONITRILE

The anodic oxidation kinetics of hydrazine on glassy carbon electrodes in acetonitrile were examined by cyclic voltammetry, a rotating ring- disc electrode technique and chronoamperometry. The experimental resul ts of the rotating ring-disc electrode prove that hydrazine is oxidize d to HN=NH, which cannot be oxidized further in acetonitrile. Hydrazin e molecules are adsorbed on the electrode surface. One-third of the ad sorbed hydrazine molecules are oxidized to HN=NH and the other two thi rds act as proton acceptors. A possible mechanism of hydrazine oxidati on is proposed.