Thermophysical and spectroscopic studies of room temperature ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate in Tritons

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• 作者：Ganga Ram Chaudhary^a ; ^{grc22@pu.ac.in} ; Shafila Bansal^b ; S.K. Mehta^a ; A.S. Ahluwalia^c
• 关键词：Room temperature ionic liquid ; 1-Butyl-3-methylimidazolium hexafluorophosphate ; Triton X-45 ; Triton X-100
• 刊名：Journal of Chemical Thermodynamics
• 出版年：2012
• 期刊代码：123_00219614
• 类别：ch
• 出版时间：July, 2012
• 卷：50
• 期：Complete
• 页码：63-70
• 文件大小：788 K

摘要

The thermophysical properties viz. density 蟻, speed of sound u, and specific conductivity 魏 of pure room temperature ionic liquid (1-butyl-3-methylimidazolium hexafluorophosphate) and its binary formulations with Triton X-45 and Triton X-100 have been studied over the entire composition range at different temperatures (293.15 to 323.15) K. Excess molar volume V^E, deviation in isentropic compressibility 螖K_S, partial molar excess volume , deviation in partial molar isentropic compressibility , deviation in specific conductivity 螖魏 have also been estimated and analysed. Spectroscopic properties (IR, ¹H and ¹³C NMR) of these mixtures have been investigated in order to understand the structural and interactional behaviour of formulations studied. The magnitude of interactions between the two components increases with addition of number of oxyethylene groups in Tritons and with rise in temperature. Spectroscopic measurements indicate that interactions are mainly taking place through the five member ring of room temperature ionic liquid and six member ring of Tritons.