酸性离子液体[BMIM]HSO_4的合成及其物化性能  

Synthesis and Physical Chemistry Properties of Acidic 1-Butyl-3-Methylimidazolium Hydrosulfate Ionic Liquid

作　　者：王晓丹[1,2] 吴文远[1] 涂赣峰[1] 蒋开喜[1,3] 

机构地区：[1]东北大学材料冶金学院,辽宁沈阳110004 [2]沈阳化工学院应用化学学院,辽宁沈阳110142 [3]北京矿冶研究院,北京100044

出　　处：《中山大学学报（自然科学版）》2009年第6期69-72,共4页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金资助项目(50574031)

摘　　要：以N-甲基咪唑为原料合成了1-丁基-3-甲基咪唑硫酸氢盐([BM IM]HSO4)室温离子液体,对产物进行了表征,测定了相关物化性能,如密度、表面张力、黏度、电导率等,并考察了该离子液体的溶剂性能。实验发现,该离子液体电导率与常见离子液体电导率相当,并符合Arrhen ius方程,密度、表面张力、黏度均随温度升高而减小。该离子液体与多数常规溶剂互溶,并对金属氧化物具有一定的溶解度,为在离子液体中直接电解金属氧化物奠定了基础。1-butyl-3-methylimidazolium hydrosulfate （ [ BMIM] HSO4 ） was synthesized with N-methylimidazolium and characterized. Some physical chemistry properties concerned, such as density, surface tension, viscosity, and electrical conductivity, are investigated and solvent performance is also studied. It is discovered from the experiments that this kind of ionic liquid has comparative electrical conductivity with familiar ionic liquids and the electrical conductivity follows the Arrhenius equation. Density, surface tension as well as viscosity of the ionic liquid decrease with increase of temperature. In addition, the ionic liquid is soluble in most conventional solvents and metal oxides have some solubility in it, which lays the foundation of direct electrolysis of metal oxides in ionic liquids.

关 键 词：室温离子液体 [BMIM]HSO4 物化性能 溶解度 

分 类 号：O621.3[理学—有机化学]