Impedance measurements and chronopotentiometry methods were used to investigate the diffusion of Pb2+ in the melt. The impedance technique yielded a diffusivity of 9.3 x 10-6 cm2/s at 450C and an activation energy of 8.9kcal/mol. The chronopotentiometric technique yielded corresponding figures of 9.2 x 10-6cm2/s and 7.4kcal/mol.

Diffusion Kinetics of the Electrolytic Extraction of Pb, Bi, Zn and Cd from Fused Chlorides. R.Y.Bek, A.S.Lifshits: Izv. Sib. Otd. Akad. Nauk SSSR - Khim. Nauk, 1970, 3, 58-63

 

Table 80

Diffusion of UCl4 in Eutectic KCl-LiCl Melts

 

Temperature (C)

D (cm2/s)

370

8.30 x 10-6

380

9.10 x 10-6

444

1.36 x 10-5

450

1.39 x 10-5

522

2.07 x 10-5

607

3.16 x 10-5