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题名: Thermodynamic investigation of the azeotrope of water and ethanol
作者: Nan, ZD;  Tan, ZC;  Sun, LX
关键词: adiabatic calorimetry ;  heat capacity ;  azeotrope ;  water ;  ethanol
刊名: ACTA PHYSICO-CHIMICA SINICA
发表日期: 2004-06-01
DOI: 10.3866/PKU.WHXB20040615
卷: 20, 期:6, 页:626-630
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The molar heat capacities of the azeotrope in the binary system of water and ethanol were measured by an adiabatic calorimeter in the temperature range from 78 K to 320 K. The functions of the heat capacity with respect to the thermodynamic temperature were established. The glass transition occurred at 98. 496 K. The phase transitions took place in the temperature ranges from 123.08 K to 156.96 K and 269.03 K to 273.20 K corresponding to the solid-solid phase transition of ethanol, solid-liquid phase transition of ethanol, and solid-liquid phase transition of water, respectively. The thermodynamic functions and the excess thermodynamic functions of the azeotrope relative to 298.15 K were derived based on the relationships of the thermodynamic functions and the function of the measured heat capacity with respect to the temperature.
关键词[WOS]: EXCESS ENTHALPY ;  EXTRACTIVE DISTILLATION ;  HEAT-CAPACITIES ;  MIXTURES ;  BEHAVIOR ;  ALCOHOLS ;  ACETATE ;  ETHER
语种: 英语
WOS记录号: WOS:000222223400015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139510
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.Qufu Normal Univ, Dept Chem, Qufu 273165, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China

Recommended Citation:
Nan, ZD,Tan, ZC,Sun, LX. Thermodynamic investigation of the azeotrope of water and ethanol[J]. ACTA PHYSICO-CHIMICA SINICA,2004,20(6):626-630.
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