Effect of the temperature on the physical properties of the pure ionic liquid 1-ethyl-3-methylimidazolium methylsulfate and characterization of its binary mixtures with alcohols

Requejo, Patricia F.; González, Emilio J.; Macedo, Eugénia A.; Domínguez, Ángeles

doi:10.1016/j.jct.2014.01.030

Cited by 49 publications

(23 citation statements)

References 34 publications

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“…[13][14][15]17,20,21,23,25,26,29,30,33,36,76,78,[80][81][82][83]85,[87][88][89][90]93,94,96,[102][103][104][107][108][109][110]115,[117][118][119][120][121]123,125,127,[129][130][131][132][133][134][135][136][137]…”

Section: Calculation Of Volumetric Properties and Thermodynamic Formaunclassified

Speed of Sound and Ultrasound Absorption in Ionic Liquids

et al. 2017

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A complete review of the literature data on the speed of sound and ultrasound absorption in pure ionic liquids (ILs) is presented. Apart of the analysis of data published to date, the significance of the speed of sound in ILs is regarded. An analysis of experimental methods described in the literature to determine the speed of sound in ILs as a function of temperature and pressure is reported, and the relevance of ultrasound absorption in acoustic investigations is discussed. Careful attention was paid to highlight possible artifacts, and side phenomena related to the absorption and relaxation present in such measurements. Then, an overview of existing data is depicted to describe the temperature and pressure dependences on the speed of sound in ILs, as well as the impact of impurities in ILs on this property. A relation between ions structure and speeds of sound is presented by highlighting existing correlation and evaluative methods described in the literature. Importantly, a critical analysis of speeds of sound in ILs vs those in classical molecular solvents is presented to compare these two classes of compounds. The last part presents the importance of acoustic investigations for chemical engineering design and possible industrial applications of ILs.

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Section: Calculation Of Volumetric Properties and Thermodynamic Formaunclassified

Speed of Sound and Ultrasound Absorption in Ionic Liquids

et al. 2017

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“…The density, speed of sound, and viscosity have been plotted as a function of the IL molar fraction at different temperatures in Figures – . In addition, Figure a includes [emim][Me 2 SO 4 ] + ethanol data from Requejo et al and Wang et al, and in Figure b, [emim][Me 2 SO 4 ] + 1-propanol data from Requejo et al and Dai et al are plotted. According to these figures, density data from this work are in good agreement with those reported in the literature.…”

Section: Resultsmentioning

confidence: 99%

“…Despite the importance of imidazolium-based ILs in industrial applications, work dealing with the thermophysical properties of mixtures of [emim][Me 2 SO 4 ] or [emim][SCN] with solvents is scarce in the literature. In the published papers, data reported in the literature are density − and viscosity ,,,,, of the pure [emim][Me 2 SO 4 ] and density ,− and viscosity ,,,, of pure [emim][SCN]. Nevertheless, there are few references that report physical properties data of these ILs with ethanol or 1-propanol.…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, there are few references that report physical properties data of these ILs with ethanol or 1-propanol. As far as we know, data reported are densities of [emim][Me 2 SO 4 ] + ethanol , and [emim][Me 2 SO 4 ] + 1-propanol, ,, speed of sound of [emim][Me 2 SO 4 ] + 1-propanol ,, and viscosity of [emim][Me 2 SO 4 ] + 1-propanol . Moreover, only recent molecular simulation of [emim][SCN] + ethanol binary system have been reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

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Thermophysical Properties of Mixtures of 1-Ethyl-3-methylimidazolium Methylsulfate or 1-Ethyl-3-methylimidazolium Thiocyanate with Alcohols

et al. 2021

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In the present paper, densities, speeds of sound, and viscosities of four binary mixtures containing the ionic liquids 1-ethyl-3-methylimidazolium methylsulfate and 1-ethyl-3-methylimidazolium thiocyanate mixed with ethanol or 1-propanol were measured at 101.3 kPa in the range of (283.15−323.15) K along the whole composition range. From these experimental data, the excess molar volume and the excess isentropic compressibility of pure components and mixtures were calculated and satisfactorily fitted using the Redlich−Kister polynomial equation. It can be confirmed that the organic compounds have a strong effect on the thermophysical properties of the studied ionic liquids. An increase in the alkyl chain length of 1-alcohol resulted in an increase in the excess deviation of excess molar volume.

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“…The diffusion coefficient was calculated using the Stokes-Einstein relation for a particle in an ionicliquid (IL) solution. 61 Each simulation is carried out with a time step of δt = 0.001, and we use a Langevin thermostat with a relaxation time of 200δt. Each simulation was initialized by using the experimental data frame at 100 seconds of experimental time, as this is the time required for the electron beam to drive the colloidal particles into a well defined state of motion.…”

Section: Molecular Dynamics Simulationsmentioning

confidence: 99%

Charging-driven coarsening and melting of a colloidal nanoparticle monolayer at an ionic liquid-vacuum interface

Bischak,

Raybin,

Kruppe

et al. 2020

Preprint

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We induce and investigate the coarsening and melting dynamics of an initially static nanoparticle colloidal monolayer at an ionic liquid-vacuum interface, driven by a focused, scanning electron beam. Coarsening occurs through grain boundary migration and larger-scale motions such as grain rotations, often facilitated by sliding dislocations. The progressive decrease in area fraction that drives melting of the monolayer is explained using an electrowetting model whereby particles at the interface are solvated once their accumulating charge recruits sufficient counterions to subsume the particle. Subject to stochastic particle removal from the monolayer, melting is recapitulated in simulations with a Lennard-Jones potential. This new driving mechanism for colloidal systems, whose dynamical timescales we show can be controlled with the accelerating voltage, opens the possibility to manipulate particle interactions dynamically without need to vary particle intrinsic properties or surface treatments. Furthermore, the decrease in particle size availed by electron imaging presents opportunities to observe force and time scales in a lesser-explored regime intermediate between typical colloidal and molecular systems.

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Effect of the temperature on the physical properties of the pure ionic liquid 1-ethyl-3-methylimidazolium methylsulfate and characterization of its binary mixtures with alcohols

Cited by 49 publications

References 34 publications

Speed of Sound and Ultrasound Absorption in Ionic Liquids

Speed of Sound and Ultrasound Absorption in Ionic Liquids

Thermophysical Properties of Mixtures of 1-Ethyl-3-methylimidazolium Methylsulfate or 1-Ethyl-3-methylimidazolium Thiocyanate with Alcohols

Charging-driven coarsening and melting of a colloidal nanoparticle monolayer at an ionic liquid-vacuum interface

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