Journal of Radioanalytical and Nuclear Chemistry

, Volume 128, Issue 4, pp 283–292 | Cite as

Radiation decomposition of metal acetyl acetonates

  • S. K. Patnaik
  • P. K. Maharana
  • S. N. Sahu
  • G. S. N. Murty
Article

Abstract

Studies on the thermal decomposition of the acetyl acetonate complexes of transitional metal ions Cu/II/, Cr/III/, Mn/II/, Co/II/, Fe/III/, Vo/II/, Zn/II/, and Cd/II/ have been performed by thermogravimetric method. Taking the initial decomposition temperature as a measure of thermal stability, the relative order of the thermal stability of these complexes shows the following order: Zn/II/<Cd/II/< VO/II/<Fe/III/<Cr/III/<Cu/II/≅Co/II/< Mn/II/. The nature of decomposition of Cu/II/ and Cr/III/ complexes is similar, a sigmoid curve exists. In other cases a long linear decomposition follows the sigmoid pattern. The linear decomposition is a function of final decomposition temperature and percentage of decomposition. The kinetics of the decomposition is analyzed according to the Coats-Redfern equation. The results are discussed on the basis of structural and other aspects leading to the decomposition.

Keywords

Decomposition Temperature Acetyl Acetonate Initial Decomposition Temperature Transitional Metal Thermogravimetric Method 

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Copyright information

© Akadémiai Kiadö 1988

Authors and Affiliations

  • S. K. Patnaik
    • 1
  • P. K. Maharana
    • 1
  • S. N. Sahu
    • 1
  • G. S. N. Murty
    • 1
  1. 1.Nuclear Chemistry Section, Department of ChemistryBerhampur UniversityBerhampurIndia

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