By coupling uniform magnetic and electric fields, the effect of the magnetic field strength on cathode current density was studied in an experimental electrorefining cell. The increase, with respect to electrolysis in a purely electric field, in the rate of mass transfer is interpreted by an approximate mathematical model.he effect of a magnetic field on electrolytic pro-

We performed microscopic studies of the magnetic interaction in HOPG by measuring the hyperfine field of 19 F using the time differential perturbed angular distribution (TDPAD) technique. The results show two hyperfine fields (B hf ) components: one varying strongly with temperature and saturating around 5 kG, while the other showing a maximum of 0.85 kG. The temperature dependence of B hf does not show any signature of ferromagnetic ordering, but is reminiscent of enhanced paramagnetism.

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