It was found that data for diffusion in 4N-purity material, at 250 to 400C, could be described by:

D (cm2/s) = 4.67 x 10-4 exp[-8.09(kcal/mol)/RT]

V.M.Gryaznov, S.G.Gulyanova, S.Kanizius: Zhurnal Fizicheskoi Khimii, 1973, 47[10], 2694-6

The best linear fits to the solute diffusion data ([473] to [487], [517] to [528]) yield:

Ag: Ln[Do] = 0.33E – 15.5 (R2 = 0.73); O: Ln[Do] = 0.69E – 13.2 (R2 = 0.998);

O(l): Ln[Do] = 0.42E – 9.4 (R2 = 0.98)