The reduction of Fe3+ to Fe2+ in an equimolecular melt was studied by using a rotating Pt-disk electrode and by determining the dependence of the limiting current of Fe upon the FeCl3 concentration, electrode rotation speed and temperature. From the results, it was deduced that the Fe3+ diffusivity in the melt at 250C was 2.2 x 10-5cm2/s. The activation energy for the diffusion current, at temperatures ranging from 200 to 300C, was 12.7kcal/mol.

Polarograms of the Reduction of Fe3+ to Fe2+ in an AlCl3-NaCl Fused Salt System. N.G.Chovnyk, M.V.Myshalov: Elektrokhimiya, 1970, 6[11], 1659-62