Skip to main content
SpringerLink
Log in

Zur Kenntnis der thermischen Zersetzung von Ammoniumhexafluoroscandat,-titanat,-vanadat und-chromat

Fluoro metallates(III), V: The investigation of thermal decomposition of ammonium hexafluoro-scandate,-titanate,-vanadate, and-chromate

Untersuchungen der Fluoro-metallate(III), 5. Mitt.

  • Anorganische, Struktur- und Physikalische Chemie
  • Published:
Monatshefte für Chemie / Chemical Monthly Aims and scope Submit manuscript

Abstract

Thermal analysis supported by kinetic calculations was applied exhaustively to these compounds.

Under dynamic conditions, tetrafluorometallates(III), which as intermediates, could not be isolated, for the first three compounds. In each case, the final step was the pure metal(III) fluoride.

Ammonium hexafluorochromate(III) decomposed directly to the pure chromium(III) fluoride. The decomposition rate of all compounds slowed down towards the end, probably for kinetic reasons.

Polymorphic transitions of ammonium hexafluorotitanate(III) were observed at 35 and 100°C. Ammoniumhexafluoroscandate(III) underwent polymorphic transition at 47°C. The decomposition patterns for all these compounds were similar. Conditions for the preparation of pure ammonium tetrafluorometallates(III) of Sc, Ti and V are described.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Literatur

  1. D. B. Shinn, D. S. Crocket undH. H. Haendler, Inorg. Chem.5, 1927 (1966).

    Google Scholar 

  2. B. Hajek, Z. Chem.5, 341 (1965).

    Google Scholar 

  3. B. I. Sturm undC. W. Sheridan, Inorg. Syn.7, 87 (1963).

    Google Scholar 

  4. B. I. Sturm, Inorg. Chem.1, 665 (1962).

    Google Scholar 

  5. P. Bukovec undJ. Šiftar, Proc. 3rd International Conference on Thermal Analysis, Davos, 1971, Vol. 2, S. 321. Basel: Birkhäuser. 1972.

    Google Scholar 

  6. B. N. Ivanov-Emin, T. N. Susanina undA. I. Ežov, J. Neorg. Him.12, 23 (1967).

    Google Scholar 

  7. P. J. Nassiff, T. W. Couch, W. E. Hatfield undJ. E. Villa, Inorg. Chem.10, 368 (1971).

    Google Scholar 

  8. L. Passerini undR. Pirani, Gazz. Chim. Ital.62, 279 (1932).

    Google Scholar 

  9. I. Teich undE. Baumgärtel, Z. anorg. allg. Chem.386, 279, 285 (1971).

    Google Scholar 

  10. H. G. Wiedemann, Chemie-Ing. Tech.36, 1105 (1964).

    Google Scholar 

  11. J. Šiftar undP. Bukovec, Mh. Chem.101, 1184 (1970).

    Google Scholar 

  12. H. Bode undE. Voss, Z. anorg. allg. Chem.290, 1 (1957).

    Google Scholar 

  13. E. S. Freeman undB. Carroll, J. Phys. Chem.62, 394 (1958).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Laboratorium für anorganische Chemie, Universität Ljubljana, Murnikova 6, YU-61001, Ljubljana, Jugoslawien

    P. Bukovec &  J. Šiftar

  2. Institut „Jožef Stefan”, Universität Ljubljana, YU-61001, Ljubljana, Jugoslawien

    P. Bukovec &  J. Šiftar

Authors
  1. P. Bukovec
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. J. Šiftar
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Mit 4 Abbildungen

4. Mitt.: Mh. Chem.104, 194 (1973).

Rights and permissions

Reprints and permissions

About this article

Cite this article

Bukovec, P., Šiftar, J. Zur Kenntnis der thermischen Zersetzung von Ammoniumhexafluoroscandat,-titanat,-vanadat und-chromat. Monatshefte für Chemie 105, 510–516 (1974). https://doi.org/10.1007/BF00912602

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00912602

Search

Navigation