<報文>FeCl_3-NaCl2成分系溶融塩の融点および電気伝導度について

概要

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Melting temperatures of FeCl_3-NaCl melts have been measured by means of DTA and direct observation. The similar trend of the liquidus line with that of the AlCl_3-NaCl system suggested the formation of FeCl_4^- and Fe_2Cl_7^- complexes. Ferric chloride melts to form molecular liquid but a small amount of Fe_2Cl_6 is reported to dissociate and therefore the missibility gap does not occur due to this dissociation. Specific electrical conductances of melts rich in FeCl_3 in FeCl_3-NaCl system have been measured. The decrease of the rate of the conductance increase against the temperature increase is observed and this is explained by the formation of neutral NaFeCl_4 molecules corresponding to vapor species which eat up free sodium ions contributing to the electrical conduction.
東北大学の論文
1981-10-20