Journal of thermal analysis

, Volume 37, Issue 1, pp 3–10 | Cite as

Remarks on structure and thermal characterization of Tris-Thallium(III) glycollate

  • M. A. Ali Beg
  • M. Ali Qaiser


Thermal decarboxylation of Tl (GLA), where GLA stands for glycollic acid anion was reported by Khadikar using TG, DTG and DTA techniques. The various kinetic and thermodynamic parameters were evaluated by him from nonisothermal thermogravimetric curve employing different computational methods. Upon re-estimating his data the reaction order and activation energy were found to be 0.67 and 269 kJ/mol respectively, instead of reported reaction ordern=1 and activation energyE=282 kJ/mol in the paper under comment.


Unter Anwendung von TG, DTG und DTA beschrieb Khadikar die thermische Decarboxylierung von Tl(GLA) mit GLA=Glykolsäureanion. Mittels verschiedener Rechenmethoden ermittelte er aus der nichtisothermen thermogravimetrischen Kurve verschiedene kinetische und thermodynamische Parameter. In einer Revision seiner Ergebnisse fanden wir anstelle der beschriebenen Reaktionsordnung von 1 und der Aktivierungsenergie vonE=282 kJ/mol Werte von 0.67 bzw. 269 kj/mol.


Polymer Physical Chemistry Activation Energy Inorganic Chemistry Thermodynamic Parameter 
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Copyright information

© Wiley Heyden Ltd., Chichester and Akadémiai Kiadó, Budapest 1991

Authors and Affiliations

  • M. A. Ali Beg
    • 1
    • 2
  • M. Ali Qaiser
    • 1
  1. 1.P. C. S. I. R. LaboratoriesPeshawarPakistan
  2. 2.Planning and Development P. C. S. I. R.Directorate of Industrial LiaisonKarachi-39Pakistan

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