By using chronopotentiometric measurements, the diffusion of ThIV ions in melts at temperatures of between 1000 and 1200K was shown to be described by:

log[D (cm2/s)] = -2.0868 – 2670/T

with a value of 3.06 x 10-5cm2/s at 1100K.

V.E.Komarov, N.P.Borodina, V.Y.Kudyakov, Y.V.Posokhin: Elektrokhimiya, 1974, 10[10], 1599-601

Table 152

Diffusivity of TiO2 in Molten RbCl