A study was made of the H absorption of liquid Fe which was held in ring-shaped tubes. The resultant data (table 47) could be described by:

D (cm2/s) = 5.21 x 10-2 exp[-4.42(kcal/mol)/RT]

V.I.Arkharov, I.A.Novokhatskii, G.S.Ershov, A.M.Kovalenko: Doklady Akademii Nauk, 1970, 190[6], 1329-32