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题名: Heat capacities and thermodynamic properties of chrysanthemic acid
作者: Xue, B;  Wang, JY;  Tan, ZC;  Lu, SW;  Meng, SH
关键词: adiabatic calorimetry ;  chrysanthemic acid ;  heat capacity ;  TG ;  thermal decomposition ;  thermodynamic function
刊名: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
发表日期: 2004
卷: 76, 期:3, 页:965-973
收录类别: SCI
文章类型: Article
项目归属: 1504
产权排名: 2;3
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 chrysanthemic acid in the temperature range from 80 to 400 K were measured with a precise automatic adiabatic calorimeter. The chrysanthemic acid sample was prepared with the purity of 0.9855 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 390.741 +/- 0.002 K, 14.51 +/- 0.13 kJ mol(-1), 37.13 +/- 0.34 J mol(-1) K-1, respectively. The thermodynamic functions of chrysanthemic acid, 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 TG analysis under the heating rate of 10 K min(-1) confirmed that the thermal decomposition of the sample starts at ca. 410 K and terminates at ca. 471 K. The maximum decomposition rate was obtained at 466 K. The purity of the sample was determined by a fractional melting method.
关键词[WOS]: ADIABATIC CALORIMETER ;  ALPHA-ALUMINA ;  STANDARD
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000222091300028
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/81459
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, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China

Recommended Citation:
Xue, B,Wang, JY,Tan, ZC,et al. Heat capacities and thermodynamic properties of chrysanthemic acid[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2004,76(3):965-973.
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