Excess molar volumes and viscosity behaviour of binary mixtures of aniline/or N,N-dimethylaniline with imidazolium ionic liquids having triflate or bistriflamide anion

Soldatović, Danijela; Vuksanović, Jelena M.; Radović, Ivona R.; Višak, Zoran P.; Kijevčanin, Mirjana Lj.

doi:10.1016/j.jct.2017.02.007

Cited by 26 publications

(8 citation statements)

References 98 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Deviations of atmospheric viscosity literature data for [BMIM][OTf] as a function of temperature from the present results, as described by the correlation eqs –: purple delta; Seddon et al (CP); green solid box, Seoane et al (CT); green times symbol, Batista et al (CC); – , Mbondo Tsamba et al (CC); + , Yadav et al (FRS); blue open circle, Tokuda et al (CC); red asterisk, Anwar et al (FRS); red times symbol, Fatima et al (FRS); purple open tilted square, Soldatovic et al (CC); yellow solid circle, Khan et al (FRS); blue box, Shamsipur et al (CC); green solid tilted square, Ge et al (CP); yellow solid up-triangle, Paez et al (FRS); gray box; Kakinuma et al (MP); and red solid box, Petrowsky et al (Cam).…”

Section: Resultsmentioning

confidence: 42%

Viscosity and Density of Two 1-Alkyl-3-methyl-imidazolium Triflate Ionic Liquids at High Pressures: Experimental Measurements and the Effect of Alkyl Chain Length

et al. 2021

View full text Add to dashboard Cite

New measurements of the viscosity of 1-butyl-3-methylimidazolium triflate ([BMIM][OTf]) and 1-hexyl-3-methyl-imidazolium triflate ([HMIM][OTf]) have been carried out at high pressures, using a vibrating-wire technique operated in the forced mode of oscillation. The measurements for [BMIM][OTf] have been performed along six isotherms from 298 to 358 K at pressures up to 50 MPa. The viscosity measurements for [HMIM][OTf] have been carried out along five isotherms from 303 to 358 K at pressures up to 50 MPa. The estimated uncertainty of the measurements is less than U(η) = 0.02•η for viscosities up to 68 mPa•s and less than U(η) = 0.026•η for higher viscosities, with a confidence level of 0.95 (k = 2). For both ionic liquids, complementary density measurements have been performed using an Anton Paar HP densimeter in the same temperature and pressure ranges as those used for the viscosity measurements. The density results have an uncertainty smaller than U(ρ) = 0.002•ρ with a confidence level of 0.95 (k = 2). The viscosity results were correlated with the density data using a previously described hard-sphere-based technique. The individual correlations are able to describe the viscosity results for each liquid with an uncertainty smaller than the estimated uncertainty of the experimental data. The effect of alkyl substituents on the viscosity and the density of these ionic liquids has been analyzed. For this purpose, previously published results for the viscosity and density of 1-ethyl-3-methylimidazolium trifluoromethanesulfonate ([EMIM][OTf]) have been considered in addition to the data obtained in the present work for [BMIM][OTf] and [HMIM][OTf].

show abstract

Section: Resultsmentioning

confidence: 42%

Viscosity and Density of Two 1-Alkyl-3-methyl-imidazolium Triflate Ionic Liquids at High Pressures: Experimental Measurements and the Effect of Alkyl Chain Length

et al. 2021

View full text Add to dashboard Cite

show abstract

“…For water, the EOS of Wagner and Pruss [38] was used for density calculations with an uncertainty of 0.001% for each (T, p) state point. The density of the ionic liquids was taken from values found in the literature [39,40] and assumed to be constant throughout the measurements.…”

Section: Discussionmentioning

confidence: 99%

Raman Sensor for the Determination of Gas Solubility

Lipinski

Richter

2021

Physchem

View full text Add to dashboard Cite

Efficient and environmentally responsible use of resources requires the development and optimization of gas separation processes. A promising approach is the use of liquids that are designed for specific tasks, e.g., the capture of carbon dioxide or other greenhouse gases. This requires an accurate determination of gas solubilities for a broad range of temperatures and pressures. However, state of the art measurement techniques are often very time consuming or exhibit other pitfalls that prevent their use as efficient screening tools. Here, we show that the application of Raman spectroscopy through a compact measuring system can simplify data acquisition for the determination of gas solubilities in liquids. To demonstrate that this approach is expedient, we determined gas solubilities of carbon dioxide in water for three isotherms T = (288.15, 293.15, 298.15) K over a pressure range from p = (0.5–5) MPa and in three imidazolium-based ionic liquids for one isotherm T = 298.15 K at pressures from p = (0.1–5) MPa. When compared to data in the literature, all results are within the reported uncertainties of the measurement techniques involved. The developed analysis method eliminates the need for a lengthy volume or mass calibration of the sample prior to the measurements and, therefore, allows for fast screening of samples, which can help to advance gas separation processes in scientific and industrial applications.

show abstract

“…In order to verify the absorption effect of the experimental data ([EMIM] [TFA] + TEA) on NO 2 , we compared it with the ratio of viscosity value and absorption quality of NO 2 absorbents prepared in the existing literature (at the same temperature and pressure). MDEA (101.00 mPa•s/0.021 g•g −1 = 4809.00) [10]; CPL-TBAB (6502.38 mPa•s/0.355 g•g −1 = 18,316.56) [20,21]; [BMIM] [OTF] (132.70 mPa•s/0.032 g•g −1 = 4146.88) [22,46]. The absorption capacity of NO 2 by the mixture of ionic liquid created in this experiment is significantly better than those of other absorbents, and the negative effect of water was eliminated.…”

Section: ([Emim]mentioning

confidence: 99%

Experimental Research on NO2 Viscosity and Absorption for (1-Ethyl-3-methylimidazolium Trifluoroacetate + Triethanolamine) Binary Mixtures

et al. 2021

View full text Add to dashboard Cite

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.

show abstract

Excess molar volumes and viscosity behaviour of binary mixtures of aniline/or N,N-dimethylaniline with imidazolium ionic liquids having triflate or bistriflamide anion

Cited by 26 publications

References 98 publications

Viscosity and Density of Two 1-Alkyl-3-methyl-imidazolium Triflate Ionic Liquids at High Pressures: Experimental Measurements and the Effect of Alkyl Chain Length

Viscosity and Density of Two 1-Alkyl-3-methyl-imidazolium Triflate Ionic Liquids at High Pressures: Experimental Measurements and the Effect of Alkyl Chain Length

Raman Sensor for the Determination of Gas Solubility

Experimental Research on NO2 Viscosity and Absorption for (1-Ethyl-3-methylimidazolium Trifluoroacetate + Triethanolamine) Binary Mixtures

Contact Info

Product

Resources

About