Skip to main content
SpringerLink
Log in

Thermal decomposition and spectroscopic properties of silver chromate

  • Published:
Journal of thermal analysis Aims and scope Submit manuscript

Abstract

The thermal decomposition reactions of silver chromate, Ag2CrO4 were studied in N2 atmosphere and air in the temperature range 293–1293 K. On the basis of the weight loss, infrared spectra, X-ray diffraction and scanning spectroscopy measurements the decomposition scheme of the compound has been proposed and the activation energy,E a calculated. Digital filter enhanced electronic spectroscopy was used for the estimation of the band positions in the spectra of Ag2CrO4 and CuCrO4, particularly for those corresponding to oxygen-chromium electron transfer. Attempt has been made to elucidate the correlation between thermal and spectral data.

Zusammenfassung

In einer Stickstoff- und in einer Luftatmosphäre wurden im Temperaturbereich 293–1293 K die thermischen Zersetzungsreaktionen von Silberchromat Ag2CrO4 bestimmt. Anhand der prozentuellen Gewichtsverluste, der IR-Spektren, von Röntgendiffraktions- und Scanning-Spektroskopiemessungen wurde ein Zersetzungs-schema für diese Verbindung entwickelt und die Aktivierungsenergie Ea berechnet. Mittels Elektronenspektroskopie mit Digitalfilterung wurden die Bandenpositionen in den Spektren für Ag2CrO4 und CuCrCO4 geschätzt, besonders für diejenigen Banden, die dem Sauerstoff-Chrom Elektronentransfer entsprechen. Weiterhin wurde versucht, eine Beziehung zwischen thermischen und Spektraldaten zu finden.

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

References

  1. R. G. Darrie, W. P. Doyle and I. Kirkpatrick, J. Inorg. Nucl. Chem., 29 (1967) 979 and the references therein.

    Article  Google Scholar 

  2. A. Bartecki and M. Sowinska, Thermochim. Acta, 133 (1988) 365.

    Article  Google Scholar 

  3. M. CieŠlak-Golonka, Coord. Chem. Rev., 109 (1991) 223 and the references therein.

    Article  Google Scholar 

  4. C. W. F. T. Pistorius and J. E. Krueger, Z. Allg. Anorg. Chem., 352 (1967) 222.

    Article  Google Scholar 

  5. M. CieŠlak-Golonka, J. Wieckowska and B. Kacma, J. Thermal Anal., 36 (1990) 2217.

    Article  Google Scholar 

  6. F. Hanic, I. Horvath, G. Plesch and L. Galikova, J. Solid State Chem., 59 (1985) 190.

    Article  Google Scholar 

  7. M. Ciešlak-Golonka, A. Bartecki and M. Raczko, Polyhedron, 7 (1988) 601.

    Article  Google Scholar 

  8. Gmelin Handbuch für Anorg. Chem., Vol. 60 (1966).

  9. A. W. Coats and J. P. Redfern, Nature (London), 201 (1964) 68.

    Google Scholar 

  10. G. Biermann and H. Ziegler, Anal. Chem., 58 (1986) 536.

    Article  Google Scholar 

  11. J. Myrczek, Spectrosc. Lett., 23 (1990) 1027.

    Google Scholar 

  12. Z. Staszak, M. Ciešlak-Golonka and M. Raczko, Spectrosc. Lett., 25 (1992) 349.

    Google Scholar 

  13. L. Banks, M. Greenblatt and B. R. McGravey, J. Chem. Phys., 47 (1967) 3772.

    Article  Google Scholar 

  14. Carrington and D. S. Schonland, Mol. Phys., 3 (1960) 331.

    Google Scholar 

  15. L. Banks, M. Greenblatt and S. L. Holt, J. Chem. Phys., 49 (1968) 141.

    Article  Google Scholar 

  16. C. Simo, L. Banks and S. L. Holt, Inorg. Chem., 9 (1970) 183.

    Article  Google Scholar 

  17. R. G. Snyder and I. A. Ibers, J. Chem. Phys., 36 (1962) 1356.

    Article  Google Scholar 

  18. Inorganic Chemistry of Chromium (in Russian), Khimija. Leningrad 1981.

  19. E. Ingier-Stocka, J. Thermal Anal., 37 (1991) 769.

    Article  Google Scholar 

  20. E. Ingier-Stocka, Thermochim. Acta, 170 (1990) 107.

    Article  Google Scholar 

  21. K. Schwetlick, Kinetische Methoden zur Untersuchung von Reaktionsmechanismen, VEB Deutscher Verlag der Wissenschaften, Berlin 1971.

    Google Scholar 

  22. T. laczala, M. Ciešlak-Golonka, A. Bartecki and M. Raczko to be published.

  23. A. B. P. Lever, Inorganic Electronic Spectroscopy, 2nd Edn., Elsevier, Amsterdam 1984.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institute of Inorganic Chemistry and Metallurgy of Rare Elements, Technical University of Wroclaw, 50-370, Wroclaw, Poland

    M. Ciešlak-Golonka

Authors
  1. M. Ciešlak-Golonka
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Ms K. Markiewicz is acknowledges for recording TG/DTG and DTA curves. Thanks are extended to Dr. E. Ingier-Stocka and Prof. A. Bartecki for critically reading the manuscript and for helpful comments.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ciešlak-Golonka, M. Thermal decomposition and spectroscopic properties of silver chromate. Journal of Thermal Analysis 38, 2501–2513 (1992). https://doi.org/10.1007/BF01974628

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01974628

Keywords

Search

Navigation