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学科主题物理化学
Heat capacity and thermodynamic properties of an unique ionic liquid, 1-Ethyl-3-methylimidazolium Tris(pentafluoroethyl)trifluorophosphate
Tan ZC(谭志成); Zhao JN(赵军宁); Liu QS(刘青山); Sun LX(孙立贤); UrsWelZ-Biermann
会议名称21st IUPAC international conference on chemical thermodynamics
会议日期2010-7-31
2010-07-31
会议地点Japan
页码187/2
主办者The Japan society of calorimetry and thermal analysis
英文摘要The thermodynamic properties of the titled IL compound ([EMIM][FAP], CAS-NO:377739-43-0) were studied with high precision adiabatic calorimetry (AC), thermogravimatric analysis (TG-DTG) and differntial scanning alorimetry (DSC). The heat capacities were precisely measured in the temperature range from 78 K to 410 K by means of a fully automated adiabatic calorimeter. Asolid-Liquid fusion transition at 236.481 ± 0.130 K and a solid-liquid fusion transition at 272.377±0.186 K were observed. The molar enthalpy and entropy of the two transitions were determined to be 12.58 ±0.79 kJ/mol, 53.19 ± 3.33 J K-1mol-1 for the solid-solid transition, and 14.03 ± 0.11 kJ/mol, 51.52 ± 0.44J K-1mol-1 for the solid-liquid transition, respectively. The thermodynamic functions were derived from the heat capacity data int the experimental temperature range with an interval of 5 K. The themostability of the ionic liquid was further studied by TGA, and DSC measurements. The results of thermal analysis indicate that the IL starts to decompose at about 624 K and completes its mass loss at about 750 K.
语种中文
文献类型会议论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/114404
专题中国科学院大连化学物理研究所
通讯作者Tan ZC(谭志成)
推荐引用方式
GB/T 7714
Tan ZC,Zhao JN,Liu QS,et al. Heat capacity and thermodynamic properties of an unique ionic liquid, 1-Ethyl-3-methylimidazolium Tris(pentafluoroethyl)trifluorophosphate[C],2010:187/2.
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