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题名: Heat capacities and thermodynamic properties of trans-(R)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylic acid
作者: Xue, B.1;  Li, X. -F.1;  Wang, J. -Y.1;  Yu, S. -J.1;  Tan, Z. -C.2;  Sun, L. -X.2
关键词: adiabatic calorimetry ;  heat capacity ;  thermal decomposition ;  thermodynamic function ;  trans-(R)-3-(2 ;  2-dichloroethenyl)-2 ;  2-dimethylcyclopropanecarboxylic acid
刊名: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
发表日期: 2008-11-01
DOI: 10.1007/s10973-007-8259-5
卷: 94, 期:2, 页:529-534
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical ;  Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: 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, T (m), enthalpy and entropy of fusion, Delta(fus)H(m), Delta(fus)S(m), 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 center dot 10(8) min(-1), E=66.27 kJ mol(-1), respectively.
语种: 英语
WOS记录号: WOS:000260878000032
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140862
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Shenyang Univ Technol, Sch Petrochem Engn, Liaoyang 111003, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China

Recommended Citation:
Xue, B.,Li, X. -F.,Wang, J. -Y.,et al. Heat capacities and thermodynamic properties of trans-(R)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylic acid[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2008,94(2):529-534.
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