室溫離子液體[Bmim][BF4]與八種有機溶劑雙成分混合物之密度與黏度量測

Density and viscosity measurements for eight binary mixtures of organic solvents with an room temperature ionic liquid [Bmim][BF4]

吳政禹(Jheng-Yu Wu)

指導教授 ： 蘇至善

國立臺北科技大學/工程學院/化學工程研究所/碩士(2013年)

https://doi.org/10.6841/NTUT.2013.00438

摘要

本研究量測室溫離子液體1-正丁基-3-甲基引咪四氟溴酸(1-n-Butyl-3-methylimidazolium tetrafluoroborate, [Bmim][BF4])與八種有機溶劑所組成之二成分混合物的密度與黏度數據。有機溶劑包含丙酮(Acetone)、乙腈(Acetonitrile)、丁酮(2-Butanone)、N,N-二甲基乙醯胺 (N,N-Dimethylacetamide)、N,N-二甲基甲醯胺(N,N-Dimethylformamide)、乙醇(Ethanol)、甲醇(Methanol)與N -甲基-2 -吡咯烷酮 (N-Methyl-2-pyrrolidone)。量測之溫度為303、313、323與333 K，量測之[Bmim][BF4]莫耳分率由0.1至0.9。除密度與黏度數據量測外，本研究亦由量測得到之數據，計算離子液體與有機溶劑二成分混合物之過剩莫耳體積(Excess molar volume)與黏度偏差值(Deviation of viscosity)，發現八組二成分混合物系統皆具有負偏差之行為。此外，亦藉由四參數Redlich-Kister方程式進行過剩莫耳體積與黏度偏差值之數據回歸，並得到滿意之計算結果。

關鍵字

室溫離子液體 ； 密度 ； 黏度

並列摘要

In this study, densities and viscosities data of binary mixture consisted of a room temperature ionic liquid [Bmim][BF4] (1-n-Butyl-3-methylimidazolium tetrafluoroborate) and organic solvent are reported. Eight solvents including acetone, acetonitrile, 2-butanone (MEK), N,N-dimethylacetamide (DMAC), N,N-dimethylformamide (DMF), Ethanol, Methanol and N-Methyl-2-pyrrolidone (NMP) are considered in our measurement. Density and viscosity data of binary mixture at four temperatures from 303 to 333 K and nine mole fraction of [Bmim][BF4] from 0.1 to 0.9 are measured. In addition, excess molar volume and deviation of viscosity are also calculated from our measured data. The results show negative deviation for all binary mixture. Furthermore, the excess molar volume and deviation of viscosity are correlated using a four parameter Redlich-Kister equation. Satisfactory calculated results are obtained and finally presented in our study.

並列關鍵字

Room temperature ionic liquid ； Density ； Viscosity

參考文獻

An, J.-H., Kim, J.-M., Chang, S.-M. and Kim, W.-S., Application of ionic liquid to polymorphic design of pharmaceutical ingredients, Cryst. Growth Des., 10 (2010) 3044.

An, J.-H. and Kim, W.-S., Antisolvent crystallization using ionic liquids as solvent and antisolvent for polymorphic design of active pharmaceutical ingredient, Cryst. Growth Des. 13 (2013) 31.

Anthony J.L., Maginn E.J. and Brennecke J.F., Solution thermodynamics of imidazolium-based ionic liquids and water, J. Phys. Chem. B, 105 (2001) 10942.

Armstrong, D.W., He, L.F. and Liu, Y.S., Examination of ionic liquids and their interaction with molecules, when used as stationary phases in gas chromatography, Anal. Chem., 71 (1999) 3873.

Bennett, M.D. and Leo, D.J., Ionic liquids as stable solvents for ionic polymer transducers. Sens. Actuators, A, 115 (2004) 79.