A radiotracer technique was used to study the diffusion of 54Mn, in samples which contained 1.5mol%MnCl2, at temperatures ranging from 200 to 400C. The results could be described by:

D (cm2/s) = 2.3 x 10-4 exp[-0.57(eV)/kT]

A.N.Murin, I.V.Murin, V.P.Sivkov: Vestn. Leningrad. Univ., Fiz. Khim., 1972, 2[10], 122-6