The diffusion of 134Cs ions in the molten chloride at infinite dilution was measured by using the capillary reservoir method at temperatures ranging from 800 to 1000C. The results could be described by:

D (cm2/s) = 1.09 x 10-3 exp[-5.60(kcal/mol)/RT]

Diffusion of Alkali Metal Ions in Molten NaCl and KCl. T.Ejima, T.Yamamura, Y.Arita: Journal of the Japan Institute of Metals, 1974, 38[9], 859-65