Paper eintragenChronopotentiometry was used to study the diffusion of U ions in molten eutectic mixtures (table 119). It was hypothesized that, for each ion, there was a temperature at which diffusion took place according to the viscous flow mechanism.

F.Caligara, L.Martinot, G.Duyckaerts: Bulletin des Sociétés Chimiques Belges, 1967, 76, 15-25

 

 

Table 119

Diffusion Coefficients of U4+ and U3+ Ions in Molten LiCl-KCl Eutectic

 

Ion

Temperature (C)

D (cm2/s)

U4+

400

4.46 x 10-6

U3+

400

4.14 x 10-6

U4+

450

8.01 x 10-6

U3+

450

6.80 x 10-6

U4+

500

1.22 x 10-5

U3+

500

1.03 x 10-5

U3+

550

1.36 x 10-5