Correlation and Prediction of the Transport Properties of Ionic Liquids

Hossain, Mohammad Zahid; Teja, Amyn S.

doi:10.1007/s10765-015-2021-1

Cited by 16 publications

(34 citation statements)

References 50 publications

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“…Furthermore, the hard-sphere model is employed to reproduce the viscosity. The reduced viscosity of rough hard sphere RHS * is related to the reduced viscosity of smooth hard sphere SHS * using a proportionally constant Rη [55][56][57]: For the analysis, the solvatochromism is introduced to study the interactions in the binary mixtures using empirical solvent parameters: solvent acidity (α), solvent basicity (β), normalized empirical polarity (E N T ), and dipolarity/polarizability (π * ). These values are α = 0, β = 0.76, E N T = 0.377, π * = 0.88 for DMA, α = 0, β = 0.69, E N T = 0.386, π * = 0.88 for DMF, α = 0, β = 0.76, E N T = 0.444, π * ≈1 for DMSO.…”

Section: Effects Of Organic Solvents On the Viscosities Of Ilmentioning

confidence: 99%

“…Furthermore, the hard-sphere model is employed to reproduce the viscosity. The reduced viscosity of rough hard sphere η * RHS is related to the reduced viscosity of smooth hard sphere η * SHS using a proportionally constant R η [55][56][57]:…”

Section: Effects Of Organic Solvents On the Viscosities Of Ilmentioning

confidence: 99%

“…For the mixture of IL with DMF, AARD are 26.8% and 15.3% with/without the parameter k 12 , which works better than that of the first mixing rule. Teja et al studied the mixing rule of Equation (18) to predict the viscosity of IL-water with the deviation from 7.10% to 16.37% [57].…”

Section: Of 18mentioning

confidence: 99%

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Densities and Viscosities of Ionic Liquid with Organic Solvents

Yang

Feng

2020

Applied Sciences

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The ionic liquid (IL) of 1-hexyl-3-methylimidazolium acetate is widely used in chemical and bio-chemical processes. In this work, due to the high viscosity of IL, the promising chemicals (i.e., N, N-dimethylacetamide, N, N-dimethylformamide, and dimethyl sulfoxide) were selected as the additives to lower IL viscosity. The thermophysical properties of density and viscosity for IL with solvents were measured using a digital vibrating U-tube densimeter and an Ubbelohde capillary viscometer from 303.15 to 338.15 K at atmospheric pressure (0.0967 MPa), respectively. The influences of the solvents on the thermophysical properties of ionic liquid were quantitatively studied. Furthermore, based on the measurement values, the derived properties of excess molar volumes, thermal expansion coefficient, and the energy barrier were calculated, and the results showed that the mixture composition had great impact on excess volume change and viscosity. The hard-sphere model was employed to reproduce the viscosity. The infrared spectroscopy was performed to study the chemical structure to further understand the interactions between IL and the solvents.

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Section: Effects Of Organic Solvents On the Viscosities Of Ilmentioning

confidence: 99%

Section: Effects Of Organic Solvents On the Viscosities Of Ilmentioning

confidence: 99%

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Densities and Viscosities of Ionic Liquid with Organic Solvents

Yang

Feng

2020

Applied Sciences

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“…RHS is related to the reduced viscosity of smooth hardsphere η * SHS through a proportionally constant R η [50][51][52]:…”

Section: Experimental Viscosity Data and The Effects Of Solvents On Il Viscositymentioning

confidence: 99%

“…Ciotta et al extended the expression to high-viscosity hydrocarbons and the coefficients a ηi are 0, 5.14262, -35.5878, 192.05015, -573.37246, 957.41955, -833.36825, and 299.40932 [53]. e characteristic molar volume V 0 is proposed as follows [52]:…”

Section: Experimental Viscosity Data and The Effects Of Solvents On Il Viscositymentioning

confidence: 99%

Thermophysical Properties of 1-Octyl-3-Methylimidazolium Acetate with Organic Solvents

Yang

Feng

2020

International Journal of Chemical Engineering

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Ionic liquid (IL) usually possesses high viscosity. In this work, the selected organic solvents, namely, dimethyl sulfoxide, N,N-dimethylacetamide, and N,N-dimethylformamide, were used as the diluents to lower IL viscosity. The thermophysical properties of the densities and viscosities for the binary mixtures of IL (i.e., 1-octyl-3-methylimidazolium acetate) with solvents were studied at normal pressure in the temperature ranges of 303.15 K to 348.15 K. The effects of the organic solvents on lowering IL viscosity were quantitatively evaluated. The excess properties of the mixtures were calculated to analyze the interactions between IL and solvents. The hard-sphere model was employed to reproduce the viscosity behavior of the pure substances and binary mixtures.

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