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Electronegativity force of cations and thermal decomposition of complex fluorides

I. Thermal decomposition of fluorosilicates

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Abstract

The thermal decompositions of anhydrous fluorosilicates M2SiF6 (M=Li, Na, K, Rb, Cs) and MSiF6 (M=Ca, Sr, Ba) were investigated. The decompositions proceeded according to a simple acid-base mechanism with evolution of SiF4. The influence of the cationic counter-ion acidity (expressed by means of the electronegativity force) on the course of thermal decomposition was estimated quantitatively.

Zusammenfassung

Es wurde die thermische Zersetzung der wasserfreien Fluorosilikate M2SiF6 (M=Li, Na, K, Rb, Cs) und MSiF6 (M=Ca, Sr, Ba) untersucht. Die Zersetzungen zeigten eine Übereinstimmung mit einem einfachen Säure-Basen-Mechanismus, wobei SiF4 freigesetzt wird. Der Einfluß der Acidität des kationischen Gegeniones (ausgedrückt durch die Elektronegativitätskraft) auf den Verlauf der thermischen Zersetzung wurde quantitativ geschätzt.

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References

  1. D. L. Deadmore, J. S. Machin and A. W. Allen, J. Am. Ceram. Soc., 44 (1961) 105.

    Article  CAS  Google Scholar 

  2. D. L. Deadmore, J. S. Machin and A. W. Allen, J. Am. Ceram. Soc., 45 (1962) 120.

    Article  CAS  Google Scholar 

  3. E. S. Freeman and V. D. Hogan, Anal. Chem., 36 (1964) 2337.

    Article  CAS  Google Scholar 

  4. T. V. Ostrovskaja and S. A. Amirova, Izv. Vys. Uceb. Zav. SSSR-Chim. i Chim. Techn., 1967, p. 371.

  5. K. C. Patil and E. A. Secco, Can. J. Chem., 53 (1975) 2426.

    Article  CAS  Google Scholar 

  6. S. Folek and K. Kowal, J. Thermal Anal., 7 (1975) 199.

    Article  CAS  Google Scholar 

  7. A. Górski, Roczniki Chem., 45 (1971) 1981, 2193, 2201; 46 (1972) 127.

    Google Scholar 

  8. Z. Gontarz and A. Górski, Polish. J. Chem., 54 (1980) 1135.

    CAS  Google Scholar 

  9. Z. Gontarz and A. Górski, Polish. J. Chem., 65 (1991) 191.

    CAS  Google Scholar 

  10. Z. Gontarz, Polish. J. Chem., 65 (1991) 217, 229, 239, 687, 721, 731, 743.

    CAS  Google Scholar 

  11. R. D. Shannon and C. T. Prewitt, Acta Cryst., B26 (1970) 1046.

    Article  CAS  Google Scholar 

  12. V. M. Mosznenko, J. K. Delimarskij and R. V. Czernov, Zh. Neorg. Khim., 20 (1975).

  13. R. V. Czernov and V. M. Mosznenko, Zh. Neorg. Khim., 20 (1975) 266.

    Google Scholar 

  14. D. L. Deadmore and W. F. Bradley, Acta Cryst., 15 (1962) 186.

    Article  CAS  Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland

    J. Zachara & W. Wiśniewski

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  1. J. Zachara
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  2. W. Wiśniewski
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Zachara, J., Wiśniewski, W. Electronegativity force of cations and thermal decomposition of complex fluorides. Journal of Thermal Analysis 44, 363–373 (1995). https://doi.org/10.1007/BF02636127

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  • DOI: https://doi.org/10.1007/BF02636127

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