The radioactive surface method was used to determine the diffusivity of 36Cl in the molten chloride at temperatures ranging from 250 to 375C. The results could be described by:

D (cm2/s) = 670 exp[-39.5(kcal/mol)/RT]

Measurement of Small Self-Diffusion Coefficients of the Anions in Silver Chloride by the Surface Method using the Absorption Behaviour of Thin Layers for Beta Radiation. H.Grunau, J.Nolting: Zeitschrift für Physikalische Chemie, 1966, 51, 150-4