Chronopotentiometric techniques were used to investigate the diffusion of Pb2+ in fused mixtures at various temperatures. The results, for between 733 and 887C, could be described by:

D (cm2/s) = 3.34 x 10-3 exp[-9.097(kcal/mol)/RT]

C.Herdlicka, S.Sternberg: Revue Roumaine de Chimie, 1973, 18[10], 1689-98