<報文>二, 三の2元系溶融フッ化物の電気伝導度について

概要

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The specific electric conductivities of binary molten salts of NaF-BaF_2,NaF-CaF_2,KF-BaF_2 and KF-CaF_2 systems were measured at 1000℃. 1) In these binary molten salts, the specific electric conductivities decrease almost parabolically with the increase of barium fluoride or calcium fluoride contents. 2) The specific electric conductivities of these four binary molten salts were calculated by "Taniuchi's modified formula", which is a modification of "Markov's formula" and the calculated values corresponded with the measured values very well. 3) From the above-mentioned results, we conclude that the ionic species of these molten salts which take part in the electric conduction are Na^+, K^+, Ba^<++>, Ca^<++> and F^- respectively. 4) We are of the opinion that sodium fluoride cannot be replaced by potassium fluoride in the aluminum refining electrolytes, because the latter is less electrically conductible and hygroscopic.
東北大学の論文
1972-03-25