ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

 Stability of AIF₅^2- anion in the system CaF₂ —AIF₃

J. Vrbenská and M. Malinovský

Department of Electrotechnology, Slovak Technical University, 880 19 Bratislava

Abstract: The degree of the thermal dissocn. of the complex AIF₅^2-  anion of the compd. CaAlF₅ formed in the binary system CaF₂-AlF₃ was detd. by a classical thermodn. method. The approx. value of the enthalpy of fusion of CaAlF₅ ca. 96 kJ mol-1, was detd. The degree of the thermal dissocn. of AIF₅^2- anion is 5-10%. This result agrees with the assumption of a high stability of the complex AIF₅^2- anion in this system at 800-900°C.

Full paper in Portable Document Format: 326a830.pdf

Chemical Papers 32 (6) 830–833 (1978)