Electrochemical properties of Sm in eutectic melts were investigated. The stable oxidation states of Sm were (III) and (II). A study of the Sm(II)/Sm(0) reaction was not feasible because its redox potential was in the same range as the solvent couple, Li(I)/Li(0). Transient electrochemical techniques, such as cyclic voltammetry, were used to determine the standard potential of the redox couple Sm(III)/Sm(II), the activity coefficient and the enthalpy and entropy of formation of SmCl3 in the melt. Mass transport towards the electrode was a simple diffusion process, and the coefficients were calculated (table 107).

An Electrochemical Study of Samarium Ions in the Molten Eutectic LiCl+KCl. G.Cordoba, C.Caravaca: Journal of Electroanalytical Chemistry, 2004, 572[1], 145-51