石油学报(石油加工)
西门豹治水2019年9月ACTA PETROLEI SINICA(PETROLEUM PROCESSING SECTION)第35卷第5期
文章编号:1001-8719(2019)05-0995-06
1-T基3-甲基咪‘硫酸氢盐离子液体水溶液的
密度、黏度与温度、组成的关系
刘洁,牟浩文,李文深
(辽宁石油化工大学化学化工与环境学部&辽宁抚顺113001)
摘要:合成了1-丁基-3-甲基咪m硫酸氢盐离子液体(:Bmim]HSO4),在常压和303.15〜333.15K的温度范围内测定了该离子液体水溶液的密度和黏度&分别计算出过量摩尔体积和黏度偏差,并采用Redlich-Kister方程对过量摩尔体积和黏度偏差进行拟合%结果表明:随着水的摩尔分数增加、温度升高,[Bmim]HSO4水溶液的密度和黏度均减小,过量摩尔体积和黏度偏差在全部水摩尔分数范围内均为负值;Redlich-Kister四阶方程可以很好地拟合该二元体系的过量摩尔体积和黏度偏差;离子液体水溶液的密度和黏度性质受离子液体阴-阳离子之间的相互作用以及离子液体与水之间形成的氢键作用的影响%
关键词:硫酸氢盐离子液体;水溶液;二元混合物;密度;黏度
股东章程中图分类号:TQ013.1文献标识码:A doi:10.3969/j.issn.1001-8719.2019.05.022
Temperature and Composition Dependence on the Density and Viscosity of Aqueous Solutions of1-Butyl-3-Methylimidazolium Hydrosulphate Ionic Liquid
游戏乱码
LIU Jie,MOU Haowen,LI Wenshen
(College of Chemistry,Chemical Engineering and Environment*I Engineering,
Liaoning Shih.ua University&6ushun113001&China)八一座谈会
Abstract:1-Buty-3-methylimid3zolium hydrosulphate ionic liquid([Bmim]HSO4)was synthesized, and the densities and viscosities of binary mixtures([Bmim*HSO4+water)with different compositions were)etermine)un)er the atmospheric pressure an)at temperatures from303.15to 333.15K.The excess molar volume an)viscosity)eviation for the binary systems were calculate) and correlated by Redlich-Kister polynomial equation&respectively.The results show the densities andviscosiiesof$he binary sys$ems bo$h decrea wihincreasing$empera$uresand$he molar frac$ionofwa$er,and$he excess molar volumes and viscosi$y devia$ions of$he binary sys$ems are美国h
a l negaiveover$hewholecomposiionrange.Goodcorrela$ionsof$hecomposi$iondependenceare
achieved by fitting the excess molar volumes and the viscosity deviations to forth—order Redlich-Kis$erpolynomials.Thein$erac$ionsbe$weenanionsandca$ionsandhydrogenbondsbe$weenionic liquid and water have a major influence on the density and viscosity of aqueous solutions of [Bmim]HSO4.
弱智儿童Key words:hydrosulphate ionic liquid;aqueous solution;binary mixture;density;viscosity
离子液体是由有机阳离子和无机或有机阴离子态)12*作为一种绿色溶剂和有良好应用前景的功能组成的低熔点盐,在室温或低温(<373.15K)呈液材料,离子液体具有蒸气压低、难挥发、化学稳定
心在痛
收稿日期:2018-08-01
通讯联系人:刘洁,女,副教授&博士,从事油品精制及离子液体应用方面研究&E-mail:
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