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Measurements of the heat capacity of an azeotropic mixture of water and n-butanol from 78 to 320 K
Nan, ZD; Tan, ZC; Xing, J; Nan ZD(南照东); Nan ZD(南照东)
关键词Adiabatic Calorimetry Heat Capacity Excess Heat Capacity Azeotropic Mixture Water N-butanol
刊名CHINESE JOURNAL OF CHEMISTRY
2005-10-01
23期:10页:1297-1302
收录类别SCI
文章类型Article
部门归属15
项目归属1504
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]THERMODYNAMIC FUNCTIONS
英文摘要Molar heat capacities of n-butanol and the azeotropic mixture in the binary system [water (x=0.716) plus n-butanol (x=0.284)] were measured with an adiabatic calorimeter in a temperature range from 78 to 320 K. The functions of the heat capacity with respect to thermodynamic temperature were established for the azeotropic mixture. A glass transition was observed at (111.9 +/- 1.1) K. The phase transitions took place at (179.26 +/- 0.77) and (269.69 +/- 0.14) K corresponding to the solid-liquid phase transitions of. n-butanol and water, respectively. The phase-transition enthalpy and entropy of water were calculated. A thermodynamic function of excess molar heat capacity with respect to temperature was established, which took account of physical mixing, destructions of self-association and cross-association for n-butanol and water, respectively. The thermodynamic functions and the excess thermodynamic ones of the binary systems relative to 298.15 K were derived based on the relationships of the thermodynamic functions and the function of the measured heat capacity and the calculated excess heat capacity with respect to temperature.
语种英语
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WOS记录号WOS:000232213200003
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/93489
专题中国科学院大连化学物理研究所
通讯作者Nan ZD(南照东); Nan ZD(南照东)
作者单位1.Qufu Normal Univ, Dept Chem, Shandong 273165, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Liaoning, Peoples R China
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Nan, ZD,Tan, ZC,Xing, J,et al. Measurements of the heat capacity of an azeotropic mixture of water and n-butanol from 78 to 320 K[J]. CHINESE JOURNAL OF CHEMISTRY,2005,23(10):1297-1302.
APA Nan, ZD,Tan, ZC,Xing, J,南照东,&南照东.(2005).Measurements of the heat capacity of an azeotropic mixture of water and n-butanol from 78 to 320 K.CHINESE JOURNAL OF CHEMISTRY,23(10),1297-1302.
MLA Nan, ZD,et al."Measurements of the heat capacity of an azeotropic mixture of water and n-butanol from 78 to 320 K".CHINESE JOURNAL OF CHEMISTRY 23.10(2005):1297-1302.
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