Viscosity and Density Measurements for Six Binary Mixtures of Water (Methanol or Ethanol) with an Ionic Liquid ([BMIM][DMP] or [EMIM][DMP]) at Atmospheric Pressure in the Temperature Range of (293.15 to 333.15) K

2011 ◽  
Vol 57 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Yin-hui Gong ◽  
Chong Shen ◽  
Ying-zhou Lu ◽  
Hong Meng ◽  
Chun-xi Li
2013 ◽  
Vol 864-867 ◽  
pp. 125-130 ◽  
Author(s):  
Bin Guo ◽  
Yu Song ◽  
Wei Zhao Liang ◽  
Dan Dan Zhang ◽  
Wei Han ◽  
...  

To well know the properties of ionic liquid mixtures, the viscosity of the binary mixtures containing the methylbenzene and imidazole ionic liquids (1-butyl-3-methylimidazolium tetrafluoroborate [Bmim][BF4] or 1-butyl-3-methylimidazolium hexafluorophosphate [Bmim][PF6]) were measured. Within the temperature range from 298.15 K to 308.15 K, the viscosity of the four binary systems decreased sharply as the increase of temperature. The viscosity decreased slowly in the temperature range from 308.15 K to 338.15 K. The viscosity also decreased with decreasing of the mole fraction of ionic liquid. The viscosity of methylbenzene in the imidazole ionic liquids was in sequence: [Bmim][BF4] < [Bmim][PF6]. The experimental viscosity values had been correlated using the binary parameters of Vogel-Fulcher-Tamman equation.


Molecules ◽  
2021 ◽  
Vol 26 (22) ◽  
pp. 6953
Author(s):  
Baoyou Liu ◽  
Xinyu Wang ◽  
Jie Tian ◽  
Peiwen Zhang ◽  
Huilong Yang ◽  
...  

The viscosity (9.34–405.92 mPa·s) and absorption capacity (0.4394–1.0562 g·g−1) of (1-ethyl-3-methylidazolium trifluoroacetate + triethanolamine) binary blends atmospheric pressure in the temperature range of 303.15–343.15 K and at different mole fractions of [EMIM] [TFA] have been carried out. The molar fraction of [EMIM] [TFA] dependence of the viscosity and absorption capacity was demonstrated. The addition of a small amount of [EMIM] [TFA] into TEA led to rapidly decreased rates of binary blends’ viscosity and absorption capacity. However, the viscosity and absorption of binary blends did not decrease significantly when [EMIM] [TFA] was increased to a specific value. Compared with the molar fraction of the solution, the temperature had no obvious effect on viscosity and absorption capacity. By modeling and optimizing the ratio of viscosity and absorption capacity of ([EMIM] [TFA] + TEA), it is proven that when the mole fraction of [EMIM] [TFA] is 0.58, ([EMIM] [TFA] + TEA) has the best viscosity and absorption capacity at the same time. In addition, at 303.15 K, ([EMIM] [TFA] + TEA) was absorbed and desorbed six times, the absorption slightly decreased, and the desorption increased.


2020 ◽  
Vol 142 ◽  
pp. 106002 ◽  
Author(s):  
Rafael Lentner ◽  
Philipp Eckmann ◽  
Reiner Kleinrahm ◽  
Roland Span ◽  
Markus Richter

2014 ◽  
Vol 1078 ◽  
pp. 49-52
Author(s):  
Hai Tao Xu ◽  
Yu Tao Xu

The new room temperature ionic liquid 1-allyl-3-methyl-imidazolium bicarbonate [amim][HCO3] was synthesized. The viscosities and conductivities of [amim][HCO3] + water and + ethanol binary mixtures were determined in the temperature range from 273.15 K to 343.15 K, and the mole fraction of the solvents in the mixtures was in the range of 0 to 0.75 for water and 0 to 0.55 for ethanol. The conductivities of the mixtures increased with increasing concentration of the solvents and temperature in the solvent concentration range studied. The viscosities of the mixtures decreased with increasing temperature.


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