Oscillopolarographic methods were used to study the diffusion of Co2+ in the molten eutectic. The diffusivity, at temperatures ranging from 667 to 820K, could be described by:
log [D (cm2/s)] = 2.611 – 1760/T(K)
and the activation energy was equal to 33.6kJ/mol.
Oscillopolarographic Study of the Temperature Dependences of Diffusion Coefficients for a Series of Chlorides in LiCl-KCl. I.I.Naryshkin, V.P.Yurkinskii: Elektrokhimiya, 1969, 5[6], 871-2
Table 99
Diffusivity of Cu+ in LiCl-30mol%KCl Melts at 475C
Method | D (cm2/s) |
chronopotentiometry | 3.5 x 10-5 |
cyclic voltammetry | 4.1 x 10-5 |
pulse polarography | 4.2 x 10-5 |