Density, refractive index, and derived properties of binary mixtures of water + ionic liquid 1-(2-hydroxyethyl)-3-methylimidazolium tetrafluoroborate

Rives, R.; Mialdun, Aliaksndr; Yasnou, Viktar; Shevtsova, Valentina; Coronas, Alberto

doi:10.1016/j.jct.2021.106484

Cited by 10 publications

(9 citation statements)

References 48 publications

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“…Δ n D supports, to a certain extent, the results of V E . Negative V E values indicate that there is less free volume available in the mixed system than in the ideal solution, so photons are more likely to interact with DESs or water molecules, so light will propagate through the medium at a lower speed and its refractive index will be higher than that of the ideal solution . On the other hand, positive Δ n D indicates stronger interaction between DESs and water, where hydrogen bonds are formed between DESs and solvent water molecules.…”

Section: Resultsmentioning

confidence: 99%

Excess Properties of Tetrabutylammonium Bromide-Acetic Acid Deep Eutectic Solvent Capable of High-Efficiency Denitration

Zuo,

Chen,

Tong

2023

J. Chem. Eng. Data

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In the face of increasingly serious environmental pollution problems, cleaner treatment of fuel products is of great practical significance. In the present work, a deep eutectic solvent capable of efficiently removing indole from simulated oils was prepared with a tetrabutylammonium bromide and acetic acid molar ratio of 1:2, and the extraction of indole was 98.88% with a distribution coefficient of 88.61 at an initial concentration of indole of 500 mg/L. The extraction mechanism was investigated by using FT-IR spectroscopy, which revealed that [TBAB:2AA] removes indoles by hydrogen bonding interactions with them. The density, viscosity, refractive index, and surface tension of the mixtures formed by [TBAB:2AA] with water over the full range of compositions were next measured as a function of temperature and composition of the mixtures, and the interactions between the DESs and water were discussed through excess properties. The excess properties indicate the formation of hydrogen bonds between water molecules and DESs and the insertion of water molecules into the DES network. There is a correlation between the extraction performance and physical properties of aqueous solutions of DESs. This work combines theory and application and is expected to provide a useful reference for the selection study of nitrogen removal agents.

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Section: Resultsmentioning

confidence: 99%

Excess Properties of Tetrabutylammonium Bromide-Acetic Acid Deep Eutectic Solvent Capable of High-Efficiency Denitration

Zuo,

Chen,

Tong

2023

J. Chem. Eng. Data

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“…5,29,[31][32][33][34] RTILs, as a rule, possess fine-tunable physical and chemical properties. [35][36][37][38][39][40] The latter makes them attractive for several applications, in which traditional solvents perform poorly.…”

Section: Introductionmentioning

confidence: 99%

Ammonium-, phosphonium- and sulfonium-based 2-cyanopyrrolidine ionic liquids for carbon dioxide fixation

Chaban

Andreeva

Voroshylova

2022

Phys. Chem. Chem. Phys.

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“…[3][4][5] Hence, much research has been done in studying the properties of binary solutions. Dielectric properties, [6,7] refractive indices, [8][9][10][11] viscosities, [12,13] IR spectra [14,15] and excess parameters [16][17][18] of different binary liquids have been studied. Binary mixtures of alcohols with water have been investigated [19][20][21] for their significant hydrogen bonding [22] that can alter physical properties.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Bonding in 1‐Propanol‐Ethanol Binary Mixture: Experimental and Modeling Approaches

Swathi

Abdulkareem

Kartha³

et al. 2022

ChemistrySelect

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Hydrogen bonds between the constituent molecules determine the physical properties of binary liquids. In this work, we explore the nature of hydrogen bonding in ethanol‐propanol system through experimental and computational techniques. The refractive index, dielectric spectroscopy and infrared spectroscopy along with molecular dynamic simulations of 1‐propanol‐ethanol binary system over the entire concentration range are reported here. The excess static permittivity and excess relaxation time shows the evidence of hydrogen bonded multimer structures. The deconvoluted OH peaks from IR spectra indicate the presence of trimers, tetramers and pentamers. The linear decrease in refractive index indicates the absence of caged structures. Molecular Dynamics simulations confirm the presence of the multimers and the absence of caged structures. Radial distribution function shows the binary mixtures exhibit no structural change throughout the concentration range. We also examine the H‐bonding networks present in these systems via graph theoretic analysis.

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Density, refractive index, and derived properties of binary mixtures of water + ionic liquid 1-(2-hydroxyethyl)-3-methylimidazolium tetrafluoroborate

Cited by 10 publications

References 48 publications

Excess Properties of Tetrabutylammonium Bromide-Acetic Acid Deep Eutectic Solvent Capable of High-Efficiency Denitration

Excess Properties of Tetrabutylammonium Bromide-Acetic Acid Deep Eutectic Solvent Capable of High-Efficiency Denitration

Ammonium-, phosphonium- and sulfonium-based 2-cyanopyrrolidine ionic liquids for carbon dioxide fixation

Hydrogen Bonding in 1‐Propanol‐Ethanol Binary Mixture: Experimental and Modeling Approaches

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