Chronopotentiometric methods were used to study the diffusion of Cl in the molten material. The results (table 146) were suggested to indicate a temperature-independence of the diffusion coefficient. Solubility and Diffusion Coefficient of Cl in RbCl Melts. L.S.Leonova, E.A.Ukshe: Elektrokhimiya, 1970, 6[6], 892-3