Low-temperature Heat Capacity and Thermodynamic Properties of 2-Thiopheneacetic Acid
文献类型:期刊论文
作者 | Gao Zonghua1; Shi Quan2,3; Tan Zhecheng2,3; Lan Xiaozheng4 |
刊名 | acta chimica sinica
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出版日期 | 2010-02-14 |
卷号 | 68期号:3页码:227-232 |
关键词 | 2-thiopheneacetic acid adiabatic calorimetry heat capacity thermodynamic function |
英文摘要 | the low-temperature heat capacity of 2-thiopheneacetic acid was measured in the temperature range from 78 to 343 k with a high precision automated adiabatic calorimeter. no phase transition or other thermal anomaly was observed in the temperature ranges of 78 similar to 314 and 337 similar to 343 k, in which the molar heat capacities were fitted to two polynomials by means of the least square fitting. a solid-liquid phase transition was observed in the temperature range of 314 similar to 337 k. the melting point, molar enthalpy and entropy of fusion, and molar purity of this compound were determined to be 335.745 k, 16.260 kj.mol(-1), 48.415 j.k(-1).mol(-1) and 98.56%, respectively. the thermodynamic functions of 2-thiopheneacetic acid relative to the reference temperature 298.15 k were derived based on the heat capacity data in the temperature range of 80 similar to 340 k. |
WOS标题词 | science & technology ; physical sciences |
类目[WOS] | chemistry, multidisciplinary |
研究领域[WOS] | chemistry |
关键词[WOS] | synthetic sapphire alpha-al2o3 ; adiabatic calorimeter ; adsorption |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000275345400005 |
公开日期 | 2015-11-17 |
源URL | [http://159.226.238.44/handle/321008/141707] ![]() |
专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
作者单位 | 1.Binzhou Med Coll, Dept Chem, Yantai 264003, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, China Ion Liquid Lab, Dalian 116023, Peoples R China 4.Shandong Agr Univ, Coll Chem & Mat Sci, Tai An 271018, Shandong, Peoples R China |
推荐引用方式 GB/T 7714 | Gao Zonghua,Shi Quan,Tan Zhecheng,et al. Low-temperature Heat Capacity and Thermodynamic Properties of 2-Thiopheneacetic Acid[J]. acta chimica sinica,2010,68(3):227-232. |
APA | Gao Zonghua,Shi Quan,Tan Zhecheng,&Lan Xiaozheng.(2010).Low-temperature Heat Capacity and Thermodynamic Properties of 2-Thiopheneacetic Acid.acta chimica sinica,68(3),227-232. |
MLA | Gao Zonghua,et al."Low-temperature Heat Capacity and Thermodynamic Properties of 2-Thiopheneacetic Acid".acta chimica sinica 68.3(2010):227-232. |
入库方式: OAI收割
来源:大连化学物理研究所
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