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

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

doi:10.1007/s10973-005-7127-4

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Journal of Thermal Analysis and Calorimetry

Volume/Issue:: Volume 89: Issue 2

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

Authors:

Z. Hong-Kun

Z. Hong-Kun College of Chemistry and Chemical Engineering, YangZhou University, 225002 YangZhou, PR China

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T. Cao

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

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Zh. Dao-Sen

Zh. Dao-Sen College of Chemistry and Chemical Engineering, YangZhou University, 225002 YangZhou, PR China

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X. Wen-Lin

X. Wen-Lin College of Chemistry and Chemical Engineering, YangZhou University, 225002 YangZhou, PR China

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W. Ya-Qong

W. Ya-Qong College of Chemistry and Chemical Engineering, YangZhou University, 225002 YangZhou, PR China

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, and

Q. Qi-Shu

Q. Qi-Shu College of Chemistry and Chemical Engineering, YangZhou University, 225002 YangZhou, PR China

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Pages:: 531–536

Online Publication Date:: 29 Apr 2007

Publication Date:: 01 Aug 2007

Article Category:: Research Article

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

Keywords:: kinetics multivariate nonlinear regression; sodium sulfate-hydrogen peroxide-sodium chloride; thermal decomposition

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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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Journal of Thermal Analysis and Calorimetry

Print ISSN:: 1388-6150

Online ISSN:: 1572-8943

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Journal of Thermal Analysis and Calorimetry
Language	English
Size	A4
Year of Foundation	1969
Volumes per Year	1
Issues per Year	24
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	1388-6150 (Print)
ISSN	1588-2926 (Online)