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学科主题: 物理化学
题名: Thermodynamic Study of the Azeotropic Mixture Composed of N-Propanol and Benzene
作者: Nan ZD(南照东) ;  Tan ZC(谭志诚)
会议名称: 18th IUPAC Conference on Chemical Thermodynamics and The 12th National Conference on Chemical Thermodynamics and Thermal Analysis
会议日期: 2004-8-17
出版日期: 2004-08-17
会议地点: 中国
通讯作者: 谭志诚
部门归属: 十五室
主办者: 中国化学会
摘要: The behavior of azeotropic mixtures is of great interest as they are treated as pure substances. The behavior of the azeotropic mixtures was extensively studied in purification, separation and extraction aspects (1). In the present study the low-temperature heat capacities of the azeotropic mixture composed of n-propanol and benzene (0.209 and 0.791 molar fractions) were measured by an adiabatic calorimeter (2) in temperature range from 80 to 320 K. The functions of the heat capacity with respect to thermodynamic temperature were established. A glass transition was found at 99.220 K. A solid-liquid phase transition was observed at (274.127 ± 0.013) K. The corresponding enthalpy and entropy were determined to be (8.020 ± 0.017) kJ mol-1 and (29.255 ± 0.061) J K-1 mol-1, respectively. The thermodynamic functions [HT – H298.15] and [ST – S298.15] and the excess thermodynamic functions of the azeotrope relative to the temperature 298.15 K were derived based on the relationships of the thermodynamic functions and the function of the measured heat capacities with respect to temperature.
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/111790
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Nan ZD,Tan ZC. Thermodynamic Study of the Azeotropic Mixture Composed of N-Propanol and Benzene[C]. 见:18th IUPAC Conference on Chemical Thermodynamics and The 12th National Conference on Chemical Thermodynamics and Thermal Analysis. 中国. 2004-8-17.
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