Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 94: Issue 2
Heat capacities and thermodynamic properties of trans -( R )-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylic acid
Authors:
B. Xue Shenyang University of Technology School of Petrochemical Engineering Box 33 Xueyuan Road No. 30 Liaoyang 111003 P. R. China

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X. Li Shenyang University of Technology School of Petrochemical Engineering Box 33 Xueyuan Road No. 30 Liaoyang 111003 P. R. China

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J. Wang Shenyang University of Technology School of Petrochemical Engineering Box 33 Xueyuan Road No. 30 Liaoyang 111003 P. R. China

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S. Yu Shenyang University of Technology School of Petrochemical Engineering Box 33 Xueyuan Road No. 30 Liaoyang 111003 P. R. China

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Z. Tan Chinese Academy of Science Thermochemistry Laboratory, Dalian Institute of Chemical Physics P.O. Box 110 Dalian 116023 P. R. China

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L. Sun Chinese Academy of Science Thermochemistry Laboratory, Dalian Institute of Chemical Physics P.O. Box 110 Dalian 116023 P. R. China

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Pages:
529–534
Online Publication Date:
20 Sep 2008
Publication Date:
01 Nov 2008
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-007-8259-5
Keywords:
adiabatic calorimetry; heat capacity; thermal decomposition; thermodynamic function; trans-(R)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylic acid
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Abstract  

The heat capacities of trans-(R)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylic acid in the temperature range from 78 to 389 K were measured with a precise automatic adiabatic calorimeter. The sample was prepared with the purity of 0.9874 mole fraction. A solid-liquid fusion phase transition was observed in the experimental temperature range. The melting point, Tm, enthalpy and entropy of fusion, ΔfusHm, ΔfusSm, were determined to be 344.75±0.02 K, 13.75±0.07 kJ mol−1, 39.88±0.21 J K−1 mol−1, respectively. The thermodynamic functions of the sample, H(T)-H(298.15), S(T)-S(298.15) and G(T)-G(298.15), were reported with a temperature interval of 5 K. The thermal decomposition of the sample was studied by TG analysis, the thermal decomposition starts at ca. 421 K and terminates at ca. 535 K, the maximum decomposition rate was obtained at 525 K. The order of reaction, pre-exponential factor and activation energy, are n=0.14, A=1.15·108 min−1, E=66.27 kJ mol−1, respectively.

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Cover Journal of Thermal Analysis and Calorimetry
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)

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