Binary mixtures of ([C 4 mim][NTf 2 ] + molecular organic solvents): Thermophysical, acoustic and transport properties at various compositions and temperatures

Malek, Naved I.; Ijardar, Sushma P.

doi:10.1016/j.jct.2015.09.022

Cited by 28 publications

(7 citation statements)

References 85 publications

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“…The addition of BA to the IL sharply decreases the viscosity of the system as observed for most molecular solvents added to an IL. [27][28][29] The present experimental data exhibit acceptable deviations with the set of data measured by Malek et al 30 The conductivity presents a maximum as a function of the composition. This was previously reported in literature with other molecular solvents 23 and is explained by a balance between the decrease in charge density and an increase in the mobility of the ions during dilution.…”

Section: Viscositysupporting

confidence: 76%

The role of association of ions in ionic liquid/molecular solvent mixtures on metal extraction

Andanson

Papaïconomou

Cable

et al. 2017

Phys. Chem. Chem. Phys.

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Several mixtures of butyl acetate (BA) and an ionic liquid (1-methyl-3-octylpyrrolidinium bis(trifluoromethylsulfonyl)imide, [CCPyrro][NTf], 1-octyl-pyridinium bis(trifluoromethylsulfonyl)imide, [CPyr][NTf], 1-butyl-3-methyl-imidazolium bis(trifluoromethylsulfonyl)imide, [CCIm][NTf] or 1-octyl-3-methyl-imidazolium bis(trifluoromethylsulfonyl)imide, [CCIm][NTf]) have been characterized by measuring density, viscosity and conductivity, from pure BA to pure ILs at 298.15 K. The ionicity of these mixtures has been determined on the basis of electrical conductivity and NMR spectroscopy. IR spectra of these mixtures were used to examine the interactions between ions. In parallel, Pt(iv) was extracted from the acidic aqueous phase towards mixtures of BA and [CCIm][NTf] over the entire composition range. A drastic modification in the distribution coefficient of Pt(iv) was observed at ca x = 0.8. A drop was also observed in the ionicity of the extracting phase (IL + BA) at a similar composition. The variation of the distribution coefficient is ascribed to changes in the interactions in the mixtures, which in turn could induce changes in the extraction mechanism.

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Section: Viscositysupporting

confidence: 76%

The role of association of ions in ionic liquid/molecular solvent mixtures on metal extraction

Andanson

Papaïconomou

Cable

et al. 2017

Phys. Chem. Chem. Phys.

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“…31−36 For butanal, noticeable deviations from reported values in the literature were found for density and refractive index, despite the purity of 98.5% (m/m) informed by the supplier in the certificate of analysis from the gas chromatography test. The reported value for density and refractive index shown in Table 1 was for a compound with 99.3% (m/m) 32 and 99% (m/m) 37 of purity. No information about compound purity was provided by Adkins and Broderick.…”

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibria of Ternary Mixtures Containing n-Tetradecane + γ-Valerolactone + Aldehyde [Butanal or Pentanal or (E)-2-Undecenal] at 298.15 K

Dantas

Ceriani

2022

J. Chem. Eng. Data

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γ-Valerolactone (GVL) is a biomass-based chemical with appealing physicochemical properties for use as a solvent, but its actual development of extraction processes still requires an extensive mapping of the thermodynamic equilibrium involved and accurate models for simulation. In this sense, this work aimed at evaluating the liquid–liquid equilibrium of model systems, composed of n-tetradecane + GVL + aldehyde [butanal or pentanal, or (E)-2-undecenal] at 298.15 K, related to the extraction of oxygenated contaminants in a Fischer–Tropsch diesel process. Phase compositions in equilibrium were indirectly determined by means of density correlation along the solubility curve. Both short-chain aldehydes, butanal and pentanal, distributed preferably within the solvent phase, resulting in the partition ratio (K i ) within the range of 1.36–2.9 and selectivity higher than 33.1, which reveals the suitability for using GVL as the solvent. The binary interaction parameters of the NRTL and UNIQUAC models successfully correlated the experimental data, resulting in maximum root mean square deviations of 0.38 and 0.47%, respectively.

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“…It is known that the role of co-solvent in the binary systems with ILs [14,15], so our goal was also to describe their behaviour, based on excess functions derived from physico-chemical properties. For this, three types of organic solvents were investigated, all used in many chemical processes, biology and medicine: a non-polar and cyclic one (1,4-dioxane), polar and aprotic ones (DMSO and ACN), and a polar and protic one (EG).…”

Section: Introductionmentioning

confidence: 99%

Viscosity of binary mixtures of 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid with four organic solvents

Ciocîrlan

Croitoru

Iulian

2016

The Journal of Chemical Thermodynamics

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Binary mixtures of ([C 4 mim][NTf 2 ] + molecular organic solvents): Thermophysical, acoustic and transport properties at various compositions and temperatures

Cited by 28 publications

References 85 publications

The role of association of ions in ionic liquid/molecular solvent mixtures on metal extraction

The role of association of ions in ionic liquid/molecular solvent mixtures on metal extraction

Liquid–Liquid Equilibria of Ternary Mixtures Containing n-Tetradecane + γ-Valerolactone + Aldehyde [Butanal or Pentanal or (E)-2-Undecenal] at 298.15 K

Viscosity of binary mixtures of 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid with four organic solvents

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