Chronopotentiometric measurements, using an impermeable vitreous C electrode, were performed (table 76). It was found that the resultant diffusion coefficients were an order of magnitude higher than those usually associated with ions in molten salts.

Solutions of Halogens in Molten Halides. J.D.Van Norman, R.J.Tivers: BNL Report 12810, 1968

Table 78

Activation Energies for the Diffusion of

Np3+ in Molten LiCl-KCl Eutectic