European Journal of Chemistry 2014, 5(3), 507-512. doi:10.5155/eurjchem.5.3.507-512.1047

The kinetic analysis of non-isothermal carisoprodol reaction in nitrogen atmosphere using the invariant kinetic parameters method


Laila Tosson Kamel (1,*)

(1) Narcotic Department, National Center for Social and Criminal Research, Zamalek, Giza, 11561, Egypt
(*) Corresponding Author

Received: 11 Mar 2014, Accepted: 15 Apr 2014, Published: 30 Sep 2014

Abstract


The non-isothermal kinetic parameters corresponding to the thermal decomposition of carisoprodol under nitrogen atmosphere was investigated at four different heating rates 5, 10, 15 and 20 °C/min. The activation energy was determined using three linear isoconversional methods, Friedman, Flynn-Wall-Ozawa and Kissinger-Akahira-Sunose. Results showed good agreement with each other. Invariant kinetic parameters (IKP) method was applied in the conversion range of 0.2 ≤ α ≤ 0.8 for the determination of the kinetic triplet. Einv= 95.81 kJ/mol, Ainv = 2.275×107 1/min and the decomposition mechanism corresponds to nucleation and growth, following the Avrami-Erofeev model, A1.5, as the kinetic model. The Perez-Maqueda et al. criterion associated with the independence of activation parameters on the heating rate (by means of Coats-Redfern and Flynn-Wall equation) confirmed the model.


Keywords


Carisoprodol; Thermal analysis; Perez-Maqueda criterion; Invariant kinetic parameters; Linear isoconversional methods; Non-isothermal kinetic parameters

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DOI: 10.5155/eurjchem.5.3.507-512.1047

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Citations

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[1]. Ali Bilici, Ruhiye Nilay Tezel, İsmet Kaya, Fatih Doğan
Synthesis and Characterization and Thermal Decomposition Kinetics of Poly (quinoline)-Copper Composite
Celal Bayar Üniversitesi Fen Bilimleri Dergisi  , 187, 2018
DOI: 10.18466/cbayarfbe.393015
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[2]. Hermínio P. Diogo, Joaquim J. Moura Ramos, M. Fátima M. Piedade
Thermal behavior and dynamic fragility in amorphous carisoprodol. Correlation between the dynamic and thermodynamic fragilities
Thermochimica Acta  663, 99, 2018
DOI: 10.1016/j.tca.2018.03.012
/


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How to cite


Kamel, L. Eur. J. Chem. 2014, 5(3), 507-512. doi:10.5155/eurjchem.5.3.507-512.1047
Kamel, L. The kinetic analysis of non-isothermal carisoprodol reaction in nitrogen atmosphere using the invariant kinetic parameters method. Eur. J. Chem. 2014, 5(3), 507-512. doi:10.5155/eurjchem.5.3.507-512.1047
Kamel, L. (2014). The kinetic analysis of non-isothermal carisoprodol reaction in nitrogen atmosphere using the invariant kinetic parameters method. European Journal of Chemistry, 5(3), 507-512. doi:10.5155/eurjchem.5.3.507-512.1047
Kamel, Laila. "The kinetic analysis of non-isothermal carisoprodol reaction in nitrogen atmosphere using the invariant kinetic parameters method." European Journal of Chemistry [Online], 5.3 (2014): 507-512. Web. 16 Jan. 2019
Kamel, Laila. "The kinetic analysis of non-isothermal carisoprodol reaction in nitrogen atmosphere using the invariant kinetic parameters method" European Journal of Chemistry [Online], Volume 5 Number 3 (30 September 2014)

DOI Link: https://doi.org/10.5155/eurjchem.5.3.507-512.1047

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