The migration of Hg under saturated vapour pressure conditions was studied at temperatures ranging from 160 to 403C. Two-component profiles were observed (table 6) and the diffusion was rate-limited. All of the Arrhenius plots comprised 2 straight lines, with a sudden change of gradient at 275C. This was attributed to a change in the diffusion mechanism.

M.U.Ahmed, E.D.Jones, J.B.Mullin, N.M.Stewart: Journal of Crystal Growth, 1996, 159, 1141-7