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Interaction of Thulium, Ytterbium(III) and Lutetium Chlorides with Sodium Chloride

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Abstract

The pseudobinary systems NaCl—LnCl3 (Ln=Tm, Yb, Lu) were investigated by DTA and X-ray diffraction. Two types of ternary chlorides exist: congruently melting compounds Na3LnCl6 with the cryolite-structure, incongruently melting compounds NaLnCl4 with the NaErCl4-Ln (Ln=Tm) or the NaLnCl4-structure (Ln=Yb, Lu). All these structure types contain [LnCl6]-octahedra.

By solution calorimetry and e.m.f. measurements in galvanic cells for solid electrolytes could be proved that all compounds are formed from NaCl and LnCl3 by gain in lattice enthalpy.

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Authors
  1. D. Büchel
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  2. H. J. Seifert
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Büchel, D., Seifert, H.J. Interaction of Thulium, Ytterbium(III) and Lutetium Chlorides with Sodium Chloride. Journal of Thermal Analysis and Calorimetry 57, 203–208 (1999). https://doi.org/10.1023/A:1010115407242

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  • DOI: https://doi.org/10.1023/A:1010115407242

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