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Study on the non-isothermal kinetics of decomposition of 4Na2SO4·2H2O2·NaCl

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Abstract

The non-isothermal decomposition kinetics of 4Na2SO4·2H2O2·NaCl have been investigated by simultaneous TG-DSC in nitrogen atmosphere and in air. The decomposition processes undergo a single step reaction. The multivariate nonlinear regression technique is used to distinguish kinetic model of 4Na2SO4·2H2O2·NaCl. Results indicate that the reaction type Cn can well describe the decomposition process, the decomposition mechanism is n-dimensional autocatalysis. The kinetic parameters, n, A and E are obtained via multivariate nonlinear regression. The n th-order with autocatalysis model is used to simulate the thermal decomposition of 4Na2SO4·2H2O2·NaCl under isothermal conditions at various temperatures. The flow rate of gas has little effect on the decomposition of 4Na2SO4·2H2O2·NaCl.

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Authors and Affiliations

  1. College of Chemistry and Chemical Engineering, YangZhou University, 225002, YangZhou, PR China

    Z. Hong-Kun, T. Cao, Zh. Dao-Sen, X. Wen-Lin, W. Ya-Qong & Q. Qi-Shu

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  1. Z. Hong-Kun
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  2. T. Cao
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  3. Zh. Dao-Sen
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  4. X. Wen-Lin
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  5. W. Ya-Qong
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  6. Q. Qi-Shu
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Correspondence to Z. Hong-Kun.

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Hong-Kun, Z., Cao, T., Dao-Sen, Z. et al. Study on the non-isothermal kinetics of decomposition of 4Na2SO4·2H2O2·NaCl. J Therm Anal Calorim 89, 531–536 (2007). https://doi.org/10.1007/s10973-005-7127-4

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  • DOI: https://doi.org/10.1007/s10973-005-7127-4

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