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Kinetics of decomposition of alkylammonium salts

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Abstract

The thermogravimetric curves of di-n-propylammonium, di-iso-propylammonium, di-n-butylammonium and di-iso-butylammonium chlorides showed similar profiles, characterized by mass loss in only one stage, corresponding to decomposition of compounds. The following thermal stability order was obtained: [Bu2 nNH2]Cl>[Pr2 nNH2]Cl>[Pr2 iNH2]Cl>[Bu2 iNH2]Cl. The values of activation energy for non-isothermal data obtained by Ozawa and Coats-Redfern integral methods were in agreement and stability order obtained by thermogravimetry were reproduced in both methods. The decomposition reactions of [Pr2 nNH2]Cl, [Pr2 iNH2]Cl and [Bu2 iNH2]Cl were better described by A3 model and [Bu2 nNH2]Cl by A2 model.

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Authors and Affiliations

  1. Departamento de Química, CCEN, Universidade Federal da Paraíba, 58059-900, Joăo Pessoa, Paraíba, Brazil

    H. R. C. Ouriques, M. F. S. Trindade, M. M. Conceiçăo & A. G. Souza

  2. Departamento Engenharia Química, CCT, Universidade Federal de Campina Grande, 58109-970, Campina Grande, PB, Brazil E-mail

    S Prasad

  3. Brazil 3Departamento Cięncias Básicas Sociais, Campus IV, Universidade Federal da Paraíba, Bananeiras, PB, Brazil

    P. F. A. Filho

Authors
  1. H. R. C. Ouriques
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  2. M. F. S. Trindade
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  3. M. M. Conceiçăo
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  4. S Prasad
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  5. P. F. A. Filho
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  6. A. G. Souza
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Correspondence to S Prasad.

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Ouriques, H.R.C., Trindade, M.F.S., Conceiçăo, M.M. et al. Kinetics of decomposition of alkylammonium salts. Journal of Thermal Analysis and Calorimetry 75, 569–576 (2004). https://doi.org/10.1023/B:JTAN.0000027147.33054.8b

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  • DOI: https://doi.org/10.1023/B:JTAN.0000027147.33054.8b

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