The simultaneous diffusion of 210Pb and 109Cd into ion-exchange purified single crystals was studied by using the serial sectioning radiotracer technique. It was found that the 210Pb diffusion data, for 347 to 569C, could be described by:

D (cm2/s) = 1.40 x 10-2 exp[-0.982(eV)/kT]

The Simultaneous Diffusion of Pb2+ and Cd2+ in Purified NaCl Single Crystals. J.L.Krause, W.J.Fredericks: Journal of Physics and Chemistry of Solids, 1971, 32[12], 2673-84

 

Table 136

Diffusivity of SO4 in NaCl Crystals

 

Temperature (C)

D (cm2/s)

741.7

1.73 x 10-7

732.2

1.56 x 10-7

722.1

1.40 x 10-7

716.4

1.19 x 10-7

699.2

1.01 x 10-7

681.7

7.45 x 10-8

662.1

6.31 x 10-8

645.7

4.67 x 10-8

607.0

2.33 x 10-8

556.1

1.02 x 10-8

541.1

7.39 x 10-9