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学科主题: 物理化学
题名: Thermodynamic properties of ionic liquids [Cnpy][PF6] (n = 2, 3)
作者: Liu QS(刘青山) ;  Zhao JN(赵军宁) ;  Yan PF(颜佩芳) ;  Sun LX(孙立贤) ;  Tan ZC(谭志诚) ;  UrsWelz-Biermann
会议名称: 2nd Asia Pacific Conference on Ionic Liquids and Green Processes
会议日期: 2010-9-07
出版日期: 2010-09-07
会议地点: 中国
通讯作者: 谭志诚 ;  Urs Welz-Biermann
部门归属: 二室
主办者: 中国科学院大连化学物理研究所
摘要: Molar heat capacities (Cp,m) of the ionic liquids (ILs) N-alkylpyridinium hexafluorophosphate ([Cnpy][PF6] n = 2, 3) were measured with a high-precision automated adiabatic calorimeter [1] in temperature range from 80 to 400 K. Melting temperatures were observed at 374.278 ± 0.593 K for [C2py][PF6] and 370.956 ± 0.309 K for [C3py][PF6]. The enthalpy and entropy of the phase transition were also determined. Two polynomial equations of molar heat capacity as a function of the temperature were fitted before and after the melting temperature for each ionic liquid. The thermodynamic functions (HT – H298.15) and (ST – S298.15) were derived [2] from the molar heat capacity data in the temperature range of T = (80 to 400) K with an interval of 5 K.
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/114278
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:
Liu QS,Zhao JN,Yan PF,et al. Thermodynamic properties of ionic liquids [Cnpy][PF6] (n = 2, 3)[C]. 见:2nd Asia Pacific Conference on Ionic Liquids and Green Processes. 中国. 2010-9-07.
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