Kinetic analysis of thermal decomposition in liquid and solid state of 3-nitro and 4-nitro-benzaldehyde-2,4-dinitrophenylhydrazones

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• 作者：Jeanina Pandele Cusu (1) jeaninamirea@yahoo.com
  Adina Magdalena Musuc (2)
  Dumitru Oancea (1)
• 关键词：Isothermal kinetics &#8211 ; Isoconversional method &#8211 ; Induction period &#8211 ; Multivariate nonlinear regression &#8211 ; Nitro ; benzaldehyde ; 2 ; 4 ; dinitrophenylhydrazone
• 刊名：Journal of Thermal Analysis and Calorimetry
• 出版年：2012
• 出版时间：July 2012
• 年：2012
• 卷：109
• 期：1
• 页码：255-263
• 全文大小：580.4 KB
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• 作者单位：1. Faculty of Chemistry, Department of Physical Chemistry, University of Bucharest, 4-12 Regina Elisabeta Blvd, 030018 Bucharest, Romania2. 鈥淚lie Murgulescu鈥?Institute of Physical Chemistry, Romanian Academy, 202 Spl.Independentei, 060021 Bucharest, Romania
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Sciences
  Polymer Sciences
  Physical Chemistry
  Inorganic Chemistry
  Measurement Science and Instrumentation
  
• 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
• ISSN：1572-8943

文摘

A kinetic study on the thermal decomposition of 3-nitro and 4-nitro-benzaldehyde-2,4-dinitrophenylhydrazones was carried out. The isothermal and dynamic differential scanning calorimetric curves were recorded for solids and melts, respectively. The standard isoconversional analysis of the obtained curves from both isothermal and nonisothermal analysis suggests an autocatalytic decomposition mechanism. This mechanism is also supported by the temperature dependence of the observed induction periods. Based on the results of the model-free method from nonisothermal regime, the kinetic model was derived and the kinetic parameters were obtained by means of a multivariate nonlinear regression.