Excess molar volumes and excess molar enthalpies in binary systems N-alkyl-triethylammonium bis(trifluoromethylsulfonyl)imide+methanol

Machanová, Karolina; Troncoso, Jacobo; Jacquemin, Johan; Bendová, Magdalena

doi:10.1016/j.fluid.2013.11.025

Cited by 18 publications

(9 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the mixture of one IL and water, the density is This equation can expand theoretically to any number of components of a mixture, for example, the mixture of two ILs solved in water, the density is When different components are mixed, excess molar volume 36 − 38 exists due to various factors, such as shrinkage as a result of small molecules in voids between large molecules, effect of molecular structure, interaction between molecules, and polarity. Due to these factors, the estimated density will obviously deviates from the real density.…”

Section: Resultsmentioning

confidence: 99%

Density Prediction of Ionic Liquids at Different Temperatures Using the Average Free Volume Model

Yang

Chen

2021

ACS Omega

View full text Add to dashboard Cite

In this work, based on the average free volume model, the correlation between the molar volume and the van der Waals volume V w for the ionic liquids (ILs) was derived. With this model, the density of pure ILs and binary and ternary mixtures of ILs over a wide range of temperature (278–473.15 K) can be calculated with good accuracy only with the information of the chemical components. A total number of 1859 data points of 41 pure ILs and IL mixtures based on imidazolium, pyridinium, pyrrolidinium, phosphonium, and ammonium cations were used to verify the model. For pure ILs and IL mixtures, the average absolute relative deviations (ARDs) are 1.04 and 1.19%, respectively. The overall discrepancies are less than 4%.

show abstract

Section: Resultsmentioning

confidence: 99%

Density Prediction of Ionic Liquids at Different Temperatures Using the Average Free Volume Model

Yang

Chen

2021

ACS Omega

View full text Add to dashboard Cite

show abstract

“…Viscosity of the aqueous TMEAC ionic liquid as a function of concentration: black square, 293.15 K; black circle, 303.15 K; black up pointing triangle, 313.15 K; black down pointing triangle, 323.15 K. Solid lines calculated from Eq. 11V-shape change with mass fraction[38]. However, the excess molar volumes of aqueous TMEAC mixtures shows a W-shape change with mass fraction of TMEAC.…”

mentioning

confidence: 93%

Density, Viscosity and Excess Molar Volume of the Aqueous Ionic Liquid Tris(monoethanolamine) Citrate at 293.15–323.15 K

Zhang

et al. 2014

J Solution Chem

View full text Add to dashboard Cite

A new ionic liquid, tris(monoethanolamine) citrate (TMEAC), was synthesized and characterized by FT-IR spectrometry and 1 H NMR. Densities and viscosities of aqueous TMEAC mixtures were determined at 293.15-323.15 K and atmospheric pressure. The thermal expansion coefficient a, excess molar volume V E m , and excess logarithm of viscosity (ln g) E were calculated to evaluate the properties of the aqueous TMEAC ionic liquid. Correlation equations were fitted using these data for the calculation of density and viscosity. The results show that the density increases almost linearly as the mass fraction of TMEAC increases. The mass fraction of TMEAC has little influence on the density at low mass fraction. The viscosity changes significantly and sharply increases at mass fractions larger than 60 %. Both density and viscosity decrease as the temperature increases. The thermal expansion coefficient initially decreases and then increases with increase of the mass fraction of TMEAC. The change of the excess molar volume presents a W-shape. The excess logarithm of viscosity shows a variation where the value initially rises but subsequently drops. Values calculated from the correlation equations are in good agreement with the experimental values. The correlation equations can offer additional results for the aqueous TMEAC ionic liquid.Electronic supplementary material The online version of this article (

show abstract

“…The data reported on binary mixtures includes 5279 experimental values of the enthalpy change of mixing published in 65 articles − ,− available in the literature until 2015. Six different types of calorimeters, adiabatic, − Calvet-type (refs − , , , , , , , and ), isothermal flow calorimeters, − , isothermal titration calorimeters (refs − …”

Section: Introductionmentioning

confidence: 99%

Mixing Enthalpy for Binary Mixtures Containing Ionic Liquids

et al. 2016

View full text Add to dashboard Cite

A complete review of the published data on the mixing enthalpies of mixtures containing ionic liquids, measured directly using calorimetric techniques, is presented in this paper. The field of ionic liquids is very active and a number of research groups in the world are dealing with different applications of these fluids in the fields of chemistry, chemical engineering, energy, gas storage and separation or materials science. In all these fields, the knowledge of the energetics of mixing is capital both to understand the interactions between these fluids and the different substrates and also to establish the energy and environmental cost of possible applications. Due to the relative novelty of the field, the published data is sometimes controversial and recent reviews are fragmentary and do not represent a set of reliable data. This fact can be attributed to different reasons: (i) difficulties in controlling the purity and stability of the ionic liquid samples; (ii) availability of accurate experimental techniques, appropriate for the measurement of viscous, charged, complex fluids; and (iii) choice of an appropriate clear thermodynamic formalism to be used by an interdisciplinary scientific community. In this paper, we address all these points and propose a critical review of the published data, advise on the most appropriate apparatus and experimental procedure to measure this type of physical-chemical data in ionic liquids as well as the way to treat the information obtained by an appropriate thermodynamic formalism.

show abstract

Excess molar volumes and excess molar enthalpies in binary systems N-alkyl-triethylammonium bis(trifluoromethylsulfonyl)imide+methanol

Cited by 18 publications

References 36 publications

Density Prediction of Ionic Liquids at Different Temperatures Using the Average Free Volume Model

Density Prediction of Ionic Liquids at Different Temperatures Using the Average Free Volume Model

Density, Viscosity and Excess Molar Volume of the Aqueous Ionic Liquid Tris(monoethanolamine) Citrate at 293.15–323.15 K

Mixing Enthalpy for Binary Mixtures Containing Ionic Liquids

Contact Info

Product

Resources

About