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题名: Thermodynamic properties of the azeotropic mixture of acetone and methanol
作者: Nan, Z.;  Liu, N.;  Tan, Z. -C.
关键词: acetone ;  azeotropic mixture ;  heat capacity ;  methanol ;  thermodynamic property
刊名: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
发表日期: 2006-12-01
DOI: 10.1007/s10973-006-7622-2
卷: 86, 期:3, 页:819-823
收录类别: ISTP ;  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 molar heat capacities of the pure samples of acetone and methanol, and the azeotropic mixture composed of acetone and methanol were measured with an adiabatic calorimeter in the temperature range 78-320 K. The solid-solid and solid-liquid phase transitions of the pure samples and the mixture were determined based on the curve of the heat capacity with respect to temperature. The phase transitions took place at 126.16 +/- 0.68 and 178.96 +/- 1.47 K for the sample of acetone, 157.79 +/- 0.95 and 175.93 +/- 0.95 K for methanol, which were corresponding to the solid-solid and the solid-liquid phase transitions of the acetone and the methanol, respectively. And the phase transitions occurred at 126.58 +/- 0.24, 157.16 +/- 0.42, 175.50 +/- 0.46 and 179.74 +/- 0.89 K corresponding to the solid-solid and the solid-liquid phase transitions of the acetone and the methanol in the mixture, respectively. The thermodynamic functions and the excess thermodynamic functions of the mixture relative to standard temperature 298.15 K were derived based on the relationships of the thermodynamic functions and the function of the measured heat capacity with respect to temperature.
关键词[WOS]: HEAT-CAPACITIES ;  FREE-ENERGIES ;  EXTRACTIVE DISTILLATION ;  ORGANIC-COMPOUNDS ;  THERMAL-ANALYSIS ;  ACID ;  WATER ;  CYCLOHEXANE ;  ENTROPIES ;  ALCOHOL
语种: 英语
WOS记录号: WOS:000242660100036
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140007
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.Yangzhou Univ, Coll Chem & Chem Engn, Yangzhou 225002, Peoples R China
2.Qufu Normal Univ, Coll Chem Sci, Qufu 273165, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China

Recommended Citation:
Nan, Z.,Liu, N.,Tan, Z. -C.. Thermodynamic properties of the azeotropic mixture of acetone and methanol[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2006,86(3):819-823.
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