Density and viscosity of several pure and water-saturated ionic liquids
Density and viscosity of several pure and water-saturated ionic liquids
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DOI：
10.1039/b513231b
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发表时间：
2006-02-01
期刊：
影响因子：
9.8
通讯作者：
Majer, V
中科院分区：
文献类型：
--
作者：
Jacquemin, J;Husson, P;Majer, V
测定了六种离子液体（1-丁基-3-甲基咪唑六氟磷酸盐、1-丁基-3-甲基咪唑四氟硼酸盐、1-丁基-3-甲基咪唑二（三氟甲基磺酰基）亚胺、1-乙基-3-甲基咪唑二（三氟甲基磺酰基）亚胺、1-乙基-3-甲基咪唑硫酸乙酯和丁基三甲基铵二（三氟甲基磺酰基）亚胺）的密度和粘度随温度的函数。在温度高达393 K和388 K的情况下，使用Anton Paar的振动管密度计和Rheometrics Scientific的流变仪获得了密度和粘度，精度分别为10(-3)g cm（-3）和1%。通过研究干燥和水饱和样品，还检验了水的存在对测量值的影响。定性分析了密度和粘度随阳离子和阴离子化学结构的变化。
Densities and viscosities were measured as a function of temperature for six ionic liquids (1-butyl-3-methylimidazolium hexafluorophosphate, 1-butyl-3-methylimidazolium tetrafluoroborate, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-ethyl-3-methylimidazolium ethylsulfate and butyltrimethylammonium bis(trifluoromethylsulfonyl)imide. The density and the viscosity were obtained using a vibrating tube densimeter from Anton Paar and a rheometer from Rheometrics Scientific at temperatures up to 393 K and 388 K with an accuracy of 10(-3) g cm(-3) and 1%, respectively. The effect of the presence of water on the measured values was also examined by studying both dried and water-saturated samples. A qualitative analysis of the evolution of density and viscosity with cation and anion chemical structures was performed.