Chronopotentiometric measurements were used to study the diffusion of Mo3+ ions in various melts. The data, for 900 to 1100K, could be described by:
D (cm2/s) = 1.89 x 10-3 exp[-7.194(kcal/mol)/RT]
It was suggested that Mo3+ diffusion occurred because of their jumping from complex MoCl63- anions and into vacant sites of the surrounding cationic envelope; and back again.
Entropy of Diffusion Activation of Trivalent Mo in Salt Melts. O.A.Ryzhik: Tr. Tambov. Inst. Khim. Mashinostr., 1968, 2, 79-83
Table 94
Diffusion of Cl in Molten LiCl
Temperature (C) | D (cm2/s) |
682 | 3.18 x 10-3 |
672 | 2.90 x 10-3 |
676 | 2.91 x 10-3 |
694 | 2.81 x 10-3 |
726 | 1.20 x 10-3 |
755 | 7.10 x 10-4 |
795 | 4.20 x 10-4 |
825 | 4.20 x 10-4 |