Density and excess properties of N-methyldiethanolamine (MDEA) with 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate [hmim][FAP]

Abstract

In the present work, new data on the densities and refractive indices for 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate [hmim] [FAP] with N-methyldiethanolamine are reported for various concentrations and at temperatures (303.15-328.15) K. Excess molar volumes V E and excess refractive indices n E D were calculated from the experimental data. Refractive index values for the binary mixtures were predicted by using Lorentz-Lorenz, Gladstone-Dale and Eykman equations. Excess molar volumes showed positive trend, whereas excess refractive indices showed negative trend over the entire range of temperatures and concentrations studied in the present research.

Experimental Measurements of Volumetric and Acoustic Properties of Binary Mixtures of 1-Butyl-3-methylimidazolium Hexafluorophosphate with Molecular Solvents

“…10 6 A 0 (m 3 •mol −1 ) 10 6 A 1 (m 3 •mol −1 ) 10 6 A 2 (m 3 •mol −1 ) 10 6 A 3 (m 3 •mol −1 ) 10 6 A 4 (m 3 •mol −1 ) B 10 6 σ (m…”

Density, Viscosity, and Refractive Index Measurements for Binary Mixtures of N-Methyldiethanolamine (MDEA), Diethanolamine (DEA), and 2-Amino-2-methyl-1-propanol (AMP) with 1-Ethyl-3-methylimidazolium Acetate ([Emim][Ac])

“…To the best of our knowledge, limited articles are published on the physical properties of binary IL + (MDEA, DEA) systems and no article has been published on the density, viscosity, and refractive index data of the IL + AMP binary mixture. A comparison between the data obtained in this work for [Emim]­[Ac] + MDEA binary systems with the literature − , shows that the density changes as [Hmim]­[FAP] + MDEA > [Hmim]­[Tf 2 N] + MDEA > [Bmim]­[BF 4 ] + MDEA > [Hmim]­[BF 4 ] + MDEA > [Emim]­[Ac] + MDEA > [Bmim]­[Ac] + MDEA, and viscosity of the [Bmim]­[Ac] + MDEA > [Emim]­[Ac] + MDEA > [Hmim]­[BF 4 ] + MDEA > [Bmim]­[BF 4 ] + MDEA > [hmim]­[Tf 2 N] + MDEA and the refractive index changes as [Emim]­[Ac] + MDEA > [Hmim]­[BF 4 ] + MDEA ≈ [Hmim]­[Tf 2 N] + MDEA > [Hmim]­[FAP] + MDEA.…”

“…To the best of our knowledge, limited articles are published on the physical properties of binary IL + (MDEA, DEA) systems and no article has been published on the density, viscosity, and refractive index data of the IL + AMP binary mixture. A comparison between the data obtained in this work for [Emim][Ac] + MDEA binary systems with the literature [18][19][20][21]37 shows that the density changes as The Redlich−Kister polynomial as displayed in eq 9 is used to correlate excess molar volumes, viscosity deviations, and excess refractive indices at each temperature…”

“…In following further research on binary mixtures containing MEA with ionic liquid, the density and refractive index of MEA with 1-butyl-3-methylimidazolium tetrafluoroborate [Bmim][BF 4 ] are measured in the temperature range of 293.15−353.15 K by Taib and Murugesan, 13 and in another work, densities and viscosities of this mixture at T = 293.15−333.15 K are obtained by Yin et al 14 Also, Gonzalez-Miquel et al 15 Then, Zhao et al 17 reported the density, viscosity, and CO 2 capture capacity of triethanolamine (TEA) with 1-butyl-3methylimidazolium tetrafluoroborate [Bmim][BF 4 ] at atmospheric pressure and whole range of concentration and temperature of 303.15−343.15 K. Murugesan and his researchers in three works measured the thermophysical properties of N-methyldiethanolamine (MDEA) with three different ionic liquids. In the first and second works, binary m i x t u r e s o f 1 -h e x y l -3 -m e t h y l i m i d a z o l i u m b i s -(trisfluoromethylsulfonyl)imide [Hmim][Tf 2 N] and 1-hexyl-3-methylimidazolium tetrafluoroborate [Hmim][BF 4 ] with MDEA are prepared, respectively, and the density, dynamic viscosity, and refractive index of these solutions were measured over a temperature range of 303.15−323.15 K. 18,19 in the third work, and new data on the density and refractive index for 1hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate [Hmim][FAP] with MDEA are reported for temperatures 303.15−328.15 K. 20 Also, Haghtalab and Shojaeian 21 In recent years, ionic liquids based on imidazolium cation and acetate anion have shown promising behavior in CO 2 capture and researchers have devoted special attention to investigating their various properties. 2,21,23−27 This family of ionic liquids presents the chemical absorption behavior of CO 2 that is very important in absorption processes, especially at low gas pressures.…”

“…Then, Zhao et al reported the density, viscosity, and CO 2 capture capacity of triethanolamine (TEA) with 1-butyl-3-methylimidazolium tetrafluoroborate [Bmim]­[BF 4 ] at atmospheric pressure and whole range of concentration and temperature of 303.15–343.15 K. Murugesan and his researchers in three works measured the thermophysical properties of N -methyldiethanolamine (MDEA) with three different ionic liquids. In the first and second works, binary mixtures of 1-hexyl-3-methylimidazolium bis­(trisfluoromethylsulfonyl)­imide [Hmim]­[Tf 2 N] and 1-hexyl-3-methylimidazolium tetrafluoroborate [Hmim]­[BF 4 ] with MDEA are prepared, respectively, and the density, dynamic viscosity, and refractive index of these solutions were measured over a temperature range of 303.15–323.15 K. , in the third work, and new data on the density and refractive index for 1-hexyl-3-methylimidazolium tris­(pentafluoroethyl)­trifluorophosphate [Hmim]­[FAP] with MDEA are reported for temperatures 303.15–328.15 K . Also, Haghtalab and Shojaeian measured the density and viscosity of two binary mixtures of N -methyldiethanolamine (MDEA) and diethanolamine (DEA) with 1-butyl-3-methylimidazolium acetate ([Bmim]­[Ac]) at atmospheric pressure and at T = 293.15–343.15 K for density and T = 293.15–353.15 K for viscosity over the whole range of mole fraction.…”