Oscillopolarographic methods were used to study the diffusion of Bi3+ in the molten eutectic. The diffusivity, at temperatures ranging from 632 to 797K, could be described by:

log [D (cm2/s)] = 2.220 – 2200/T(K)

and the activation energy was equal to 42.0kJ/mol.

Oscillopolarographic Study of the Temperature Dependences of Diffusion Coefficients for a Series of Chlorides in LiCl-KCl. I.I.Naryshkin, V.P.Yurkinskii: Elektrokhimiya, 1969, 5[6], 871-2