Vapor Pressure Measurement of Water+1,3-Dimethylimidazolium Tetrafluoroborate System

武向红; 李静; 范丽华; 郑丹星; 董丽

doi:10.1016/S1004-9541(11)60008-6

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Vapor Pressure Measurement of Water+1,3-Dimethylimidazolium Tetrafluoroborate System

Updated：2026-01-06

- Vapor Pressure Measurement of Water+1,3-Dimethylimidazolium Tetrafluoroborate System
- Vapor Pressure Measurement of Water+1,3-Dimethylimidazolium Tetrafluoroborate System
- 中国化学工程学报（英文版） 2011年19卷第3期页码：473-477
- Affiliations：
  
  College of Chemical Engineering, Beijing University of Chemical Technology,Beijing,China,100029
- Author bio：
- Funds：
  
  Supported by the National Natural Science Foundation of China(50890184);the National Basic Research Program of China(2010CB227304)
- DOI：10.1016/S1004-9541(11)60008-6
  中图分类号：
- 纸质出版：2011
- Accepted：
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武向红, 李静, 范丽华, 等. Vapor Pressure Measurement of Water+1,3-Dimethylimidazolium Tetrafluoroborate System[J]. 中国化学工程学报（英文版）, 2011,19(3):473-477.

WU Xianghong, LI Jing, FAN Lihua, ZHENG Danxing, DONG Li. Vapor Pressure Measurement of Water+1,3-Dimethylimidazolium Tetrafluoroborate System[J]. , 2011, 19(3): 473-477.
武向红, 李静, 范丽华, 等. Vapor Pressure Measurement of Water+1,3-Dimethylimidazolium Tetrafluoroborate System[J]. 中国化学工程学报（英文版）, 2011,19(3):473-477. DOI： 10.1016/S1004-9541(11)60008-6.

WU Xianghong, LI Jing, FAN Lihua, ZHENG Danxing, DONG Li. Vapor Pressure Measurement of Water+1,3-Dimethylimidazolium Tetrafluoroborate System[J]. , 2011, 19(3): 473-477. DOI： 10.1016/S1004-9541(11)60008-6.

摘要

Abstract

In absorption cycles

ionic liquid(IL)1

3-dimethylimidazolium tetrafluoroborate([Dmim

]

)may be a promising absorbent of working pair using water as refrigerant.The vapor pressures of[Dmim

]

aqueous solution were measured with the boiling-point method in the temperature range from 312.25 to 403.60 K and in the mass concentration range of 65% to 90% of[Dmim

]

.The experimental data were correlated with an Antoine-type equation and the Non-Random Two-Liquid(NRTL)model

and the average absolute deviations between the experimental and calculated values were 1.06% and 1.15%

respectively.For the[Dmim

]

aqueous solution

the experimental vapor pressures show negative deviations from the calculated data with Raoult’s law.For higher mass concentration of the IL

the deviation is more negative.In addition

the vapor pressures

the hydrophilicity and the solubility of[Dmim

]

aqueous solutions were compared with those of[Dmim

]

Cl aqueous solutions and [Bmim

]

aqueous solutions at IL-mole fraction of 0.20.

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