Thermodynamic behavior of thiophene with octane, 1-hexyl-3-methylimidazolium bromide, or 1-octyl-3-methylimidazolium bromide in dilute region at T = (288.15 to 303.15) K

Shekaari, Hemayat; Zafarani-Moattar, Mohammed Taghi; Niknam, Mehrdad

doi:10.1016/j.jct.2015.12.031

Cited by 19 publications

(5 citation statements)

References 69 publications

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“…ILs used here were synthesized in our laboratory using known reported methods. , The method of characterization and information on the purity can be found in our previously published article . In Table , we have reported the pure component density, speeds of sound, and refractive index values. − As we have reported the pure component density, speeds of sound, and refractive index values in our previous publication, herein, we have compiled the papers published after our previous paper. − The pure IL densities, speeds of sound, and refractive indices are reported in our previous publication and hence not repeated here.…”

Section: Methodsmentioning

confidence: 99%

“…35,36 The method of characterization and information on the purity can be found in our previously published article. 36 In Table 2, we have reported the pure component density, speeds of sound, and refractive index 41 1.4966 1.5217 41 1561.9 40 1.5221 40 1561.8 39 1.5217 39 1561.9 42 1.5221 42 values. 22−27 As we have reported the pure component density, speeds of sound, and refractive index values in our previous publication, herein, we have compiled the papers published after our previous paper.…”

Section: Methodsmentioning

confidence: 99%

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Thermophysical, Acoustic, and Refractive Properties of Pure and Binary Mixtures Composed of Imidazolium-Based Ionic Liquids and PEG 600

2022

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The thermophysical properties of ionic liquids (ILs) can be judiciously modulated by adding suitable co-solvents to make them an economical alternative for various industrial processes. In our search for the better thermophysical properties of these neoteric solvents, herein, we had investigated the thermophysical, acoustic, and refractive properties of imidazolium-based ILs with the bromide counter ion and alkyl chain from butyl to octyl when they are mixed with PEG-600. The density (ρ), speeds of sound (u), and refractive index (n D ) for the pure components of the mixtures and their binary mixture were measured at their whole composition range, and temperature ranges from 293.15 to 323.15 K and at atmospheric pressure. These properties were used to calculate the excess molar volume (V m E ), excess molar isentropic compressibility (K s,m E ), and deviation in refractive index (Δ ϕ n D ) using known relations. These properties were then used to interpret the solute−solute and solute−solvent interactions present in the studied mixtures and to understand the non-ideality within the mixture. Several mixing rules were used to calculate mixtures' refractive indices and correlate with the experimentally measured values. We had further predicted the V m E values of the studied mixtures using the well-known Prigogine−Flory−Patterson theory and extended real association (ERAS) model. Results discussed in this manuscript could help us gain insights to fine-tune the properties of the ILs in a more better and balanced way for several industrial applications.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Thermophysical, Acoustic, and Refractive Properties of Pure and Binary Mixtures Composed of Imidazolium-Based Ionic Liquids and PEG 600

2022

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“…11,12 Thermodynamic properties of many binary mixtures containing thiophene + octane, 1-hexyl-3-methylimidazolium bromide [[HMIm]Br], and 1-octyl-3methylimidazolium bromide were presented at various temperatures and atmospheric pressures (0.0865 MP a ), and some thermodynamic parameters were determined. 13 The volumetric and transport properties of the 1-butyl- bromide ionic liquid were quantified in water, methanol, ethanol, acetonitrile, and acetone. 14 The activity coefficient measurements for 1-ethyl-3-methylimidazolium chloride ([EMIm]Cl) in (formamide + water) mixtures using the potentiometric method have been reported.…”

Section: Introductionmentioning

confidence: 99%

Study of Thermodynamic and Transport Properties of the Ternary System (1-Hexyl-3-Methylimidazolium Bromide + Ethanol + Water) Based on Potentiometric and Conductometric Measurements

Forough,

Ghalami-Choobar,

Ashtari-Delivand

2024

J. Chem. Eng. Data

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In this work, the molar conductivities and mean activity coefficients of 1-hexyl-3- methylimidazolium bromide [HMIm]Br in the ternary system [HMIm]Br + ethanol + water were reported using conductometric and potentiometric techniques, respectively. Conductometric data wereobtained for [HMIm]Br ionic liquids from 0.0008 to 0.2496 mol·kg–1 on various mass fractions of ethanol in ethanol + water mixtures ((w/w)% = wethanol/wmixture = 0, 10, 20, and 30%) at T = 298.2, 308.2, and 318.2 K. Ion association constants (K a ) and limiting molar conductivities (Λ0) of [HMIm]Br were achieved by the Fuoss–Onsager equation and utilized to get the thermodynamic functions. Moreover, potentiometric data were collected for the galvanic cell of the type: [HMIm]–ISE|[HMIm]Br(m[HMIm]Br), ethanol (wt)%, H2O (1 -wt) %|Br–ISE in water + ethanol mixtures (wethanol /wwater+ethanol = 0, 10, and 20%) over the ionic strength varying from 0.0094 to 1.7437 mol·kg–1 at T = 298.2 and 308.2 K. Thermodynamic properties modeling was implemented using the Pitzer ion interaction model and the values of Pitzer ion-interaction parameters β(0), β(1), and C φ were evaluated. Then, thermodynamic properties, such as mean activity coefficients, excess Gibbs free energy, osmotic coefficients, and solvent activity. were determined.

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“…The use of ionic liquids (ILs) by the scientific community has grown significantly because of their extraordinary characteristics and greater durability than other solvents. , ILs possess unique cation and anion changing characteristics, which can greatly alter their physicochemical properties and make them an attractive alternative to traditional organic solvents. , Due to their prospective uses in electrochemistry, separation processes, bio catalysis, , analytical and separation science, , and extractive deep desulfurization of liquid fuels, , we have chosen these materials for our work. To hypothesize on the cosolvent properties of ionic liquids with varying alkyl chain lengths and their applications in industrial processes and equipment designs, it is necessary to understand the molecular interactions of these liquids in binary, ternary, and higher solutions. , Medically used drugs perform specific bodily functions .…”

Section: Introductionmentioning

confidence: 99%

Molecular Interaction Studies of an Antidepressant Drug with Imidazolium-Based Ionic Liquids in an Aqueous System: A Volumetric, Acoustic, and Viscometric Approach

Singh

Sharma

et al. 2023

J. Chem. Eng. Data

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To study and comprehend the molecular interactions between ionic liquids (ILs) such as 1-ethyl-3-methylimidazolium bromide [EMIm]Br, 1-butyl-3-methylimidazolium bromide [BMIm]Br, and 1-hexyl-3-methylimidazolium bromide [HMIm]Br, and the antidepressant drug-nortriptyline hydrochloride (NTPH), we have examined the volumetric, acoustic, and viscometer properties of the binary and ternary solutions of different concentrations at different temperatures 288.15–318.15 K in the temperature interval of 10 K. The intermolecular interactions have been appraised and identified on the basis of different parameters, i.e., apparent molar properties (V Φ, K s, Φ), limiting apparent molar properties ( V o normalΦ , K o s , normalΦ ), viscosity coefficients A and B, limiting apparent molar transfer properties ( V o normalΦ , t r , K o s , normalΦ , t r ), viscosity B-coefficient of transfer (Btr ). Pair and triplet interaction coefficients are also determined using McMillan-Mayer theory. Based on the cosphere overlap model, the positive transfer values ( V o normalΦ , t r , K o s , normalΦ , t r ) demonstrate that ionic-hydrophilic and hydrophilic–hydrophilic interactions are dominant between NTPH-IL solutions. Additionally, the strength of these interactions increases as the alkyl chain length of the imidazolium ionic liquid increases. Furthermore, the negative values of temperature derivatives of B-coefficients (dB/dT) and the positive values of Hepler’s constant confirms the structure making nature of NTPH.

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Thermodynamic behavior of thiophene with octane, 1-hexyl-3-methylimidazolium bromide, or 1-octyl-3-methylimidazolium bromide in dilute region at T = (288.15 to 303.15) K

Cited by 19 publications

References 69 publications

Thermophysical, Acoustic, and Refractive Properties of Pure and Binary Mixtures Composed of Imidazolium-Based Ionic Liquids and PEG 600

Thermophysical, Acoustic, and Refractive Properties of Pure and Binary Mixtures Composed of Imidazolium-Based Ionic Liquids and PEG 600

Study of Thermodynamic and Transport Properties of the Ternary System (1-Hexyl-3-Methylimidazolium Bromide + Ethanol + Water) Based on Potentiometric and Conductometric Measurements

Molecular Interaction Studies of an Antidepressant Drug with Imidazolium-Based Ionic Liquids in an Aqueous System: A Volumetric, Acoustic, and Viscometric Approach

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