| 双阳离子型离子液体[C3(MIM)2][PF6]2的热容测定及估算 |
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| 引用本文： | 杨许召,王军,孙新科. 双阳离子型离子液体[C3(MIM)2][PF6]2的热容测定及估算[J]. 化学工程, 2011, 39(4): 61-64 |
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| 作者姓名： | 杨许召 王军 孙新科 |
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| 作者单位： | 郑州轻工业学院,河南省表界面科学重点实验室,河南,郑州,450002 |
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| 基金项目： | 河南省教育厅自然科学研究计划项目(2010A530012); 郑州市科技攻关项目(074SCCG23109-6); 郑州轻工业学院重大预研基金项目(2009XYYJJ003) |
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| 摘 要： | 利用差示扫描热量计(DSC)测定了双阳离子型离子液体1,1′-(丙烷-1,3-二基)-双(3-甲基-1H-咪唑鎓-1-基)双六氟磷酸盐([C3(MIM)2][PF6]2)在293.15-543.15 K温区内的摩尔热容.实验结果表明:在293.15-403.15 K和433.15-543.15 K温区内,该化合物无相变...
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| 关 键 词： | 双阳离子型离子液体 热容 热力学函数 基团贡献法 |
Measurement and estimation of heat capacity of dicationic ionic liquid [C_3(MIM)_2]_2 |
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| YANG Xu-zhao,WANG Jun,SUN Xin-ke. Measurement and estimation of heat capacity of dicationic ionic liquid [C_3(MIM)_2]_2[J]. Chemical Engineering, 2011, 39(4): 61-64 |
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| Authors: | YANG Xu-zhao WANG Jun SUN Xin-ke |
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| Affiliation: | YANG Xu-zhao,WANG Jun,SUN Xin-ke(Henan Provincial Key Lab of Surface and Interface Science,Zhengzhou University of Light Industry,Zhengzhou 450002,Henan Province,China) |
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| Abstract: | The molar heat capacity of dicationic ionic liquid 1,1′-(propane-1,3-diyl)-bis(3-methyl-1H-imidazolium-1-yl) dihexafluorophosphate([C3(MIM)2]2) was measured with differential scanning calorimeter(DSC) at 293.15-543.15 K.The results show that no phase transition or other thermal anomaly is observed in the range of 293.15-403.15 K and 433.15-543.15 K,in which the molar heat capacities are fitted to polynomials.The fusing temperature,molar enthalpy and entropy of fusion are 416.83 K,38.256 kJ/mol and 91.778 J/(K·mol),respectively.The thermodynamic functions relative to the standard reference temperature 298.15 K were derived based on the heat capacity data.A group contribution method was used to calculate its molar heat capacity from 433.15 to 543.15 K.The basic data are helpful for its industrial application. |
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| Keywords: | dicationic ionic liquid heat capacity thermodynamic function group contribution method |
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