Density, refractive index, and excess properties of sulfolane and alkanediols binary mixtures at different temperatures

Mohammadi, Leila; Omrani, Abdollah

doi:10.1007/s10973-017-6702-9

Cited by 19 publications

(4 citation statements)

References 46 publications

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“…The partial molar volume replicates the changes in the total volume of the mixture caused by the addition of the solute at different temperatures and pressures. It is derived from the contribution of a constituent to the total volume of the mixture . The partial molar volume of component 1 (GVL) and of component 2 (2-ME, 2-EE, 2-PE, and 2-BE) in these mixtures over the entire composition range were calculated by using the following relations where V m,1 * and V m,2 * are the molar volumes for pure components, GVL and 2-alkoxyethanols, respectively.…”

Section: Resultsmentioning

confidence: 99%

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Volumetric, Optical, and Spectroscopic Study of Molecular Interactions for Binary Liquid Mixtures of Gamma-Valerolactone with 2-Alkoxyethanols

Kataria

Rani

2022

J. Chem. Eng. Data

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Physical parameters such as densities, ρ, and refractive indices, n D , of pure gamma-valerolactone/2-alkoxyethanols and their binaries have been determined over the whole composition range at different temperatures (298.15, 303.15, 308.15, and 313.15 K) and pressure = 0.1 MPa. From the experimental results, excess properties such as excess molar volumes, V m E , deviations in refractive indices, Δ ϕ n D , and deviations in molar refractions, Δ ϕ R M , have been calculated. The predicted data were fitted to the Redlich−Kister-type polynomial equation to derive the binary interaction parameters and recognize standard deviations between experimental and calculated values of the liquid solutions. Furthermore, the partial molar volumes, V m,1 , V m,2 , and excess partial molar volumes, V m,1 E , V m,2 E , were also computed. The Prigogine−Flory−Patterson theory and Graph theory were employed to correlate experimental V m E values. The departure of real mixtures from ideal behavior was interpreted in terms of strength and nature of molecular interactions. Furthermore, Fourier-transform infrared spectroscopy studies of the investigated solution along with pure components were also reported to obtain a better insight into intermolecular interactions between unlike molecules. In our study, positive values of V m E and negative values of Δ ϕ n D were observed, which suggests weak dispersion forces between dissimilar molecules.

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Section: Resultsmentioning

confidence: 99%

“…It is derived from the contribution of a constituent to the total volume of the mixture. 72 The partial molar volume V m,1 of component 1 (GVL) and V m,2 of component 2 (2-ME, 2-EE, 2-PE, and 2-BE) in these mixtures over the entire composition range were calculated by using the following relations 73…”

Section: Volumetric Studiesmentioning

confidence: 99%

Volumetric, Optical, and Spectroscopic Study of Molecular Interactions for Binary Liquid Mixtures of Gamma-Valerolactone with 2-Alkoxyethanols

Kataria

Rani

2022

J. Chem. Eng. Data

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“…The most common mixing rules are the Lorentz-Lorenz equation, Weiner relation, Heller's, Gladstone-Dale, Arago-Biot, Eykman, Newton, Eyring-John and Oster equations. In continuation of our earlier works [17][18], we reported the refractive indices of aqueous solutions with isomeric butylamines at 303.15 K and the results had been used to elucidate the nature and extent of interaction between the components and to verify commonly used mixing rules. Literature survey revealed that refractive indices of aqueous solutions with isomeric butylamines in any form, experimental or theoretical, was scanty, and this prompted us to conduct the present research.…”

Section: Introductionmentioning

confidence: 96%

Refractive Indices of Aqueous Solutions of Isomeric Butylamines at 303.15 K: Experimental and Correlative Approach

Khan

Sohel

Islam

et al. 2021

J. Appl. Sci. Process Eng.

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Refractive indices () and densities (r) of water (W) + n-butylamine (NBA), + sec-butylamine (SBA) and + tert-butylamine (TBA) systems had been measured in the whole range of composition at 303.15 K, from which deviation in refractive index (DnD ) molar refraction (Rm) and excess molar refraction () had been evaluated. All of the derived properties were fitted to appropriate polynomials. DnD were fitted to the Redlich-Kister polynomial equation. Values of DnD were all positive and were all negative which were attributed to cross hydrogen bonding, specific interactions as well as interstitial accommodation effect. A comparative study of Lorentz-Lorenz (L-L), Weiner (W), Heller (H), Gladstone-Dale (G-D), Arago-Biot (A-B), Eykman (Eyk), Newton (Nw), Eyring-John (E-J) and Oster (Os) relations for determining the refractive index of a liquid had been carried out to test their validity for the three binaries over the entire mole fraction range of butylamines at 303.15 K.

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“…Dielectric studies in polar liquids dissolved in nonpolar solvents yield useful information on structural and associational aspects, as well as the formation of molecular complexes in GHz electric fields under various complexation, temperature and environmental parameters. Because microwaves can detect weak chemical associations, it is of great interest to researchers [1][2][3][4][5][6]. The investigations of the relationship of two polar particles because of hydrogen allotment from the dielectric relaxing estimations at microwave frequencies are exceptional.…”

Section: Introductionmentioning

confidence: 99%

Dielectric relaxation and dipole moment studies of hydrogen bonded complexes for enanthamide and valeramide with halogenated phenols using J-band microwave frequency

Basha

Khan

Basha

et al. 2022

Mater. Res. Express

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Dielectric investigations of hydrogen bonded complexes of Enanthamide and Valeramide with 4-bromophenol, 4-chlorophenol, 4-iodophenol and 4-fluorophenol in benzene were done at 303K, using a J-band (7.22GHz) microwave bench and dielectric relaxation setup. The permittivity of amides with halogenated phenol binary mixtures was measured in the microwave frequency range at temperatures ranging from 298K to 323K. At microwave frequencies; dielectric relaxation of ternary mixes of polar liquids in nonpolar fluids has been explored. Such investigations give useful information about the intermolecular and intramolecular interactions of solutes and solvent molecules. The dipole meter had a measurement frequency of 2MHz. The different parameters of dielectric, relaxation time (τ 0 ) and the dipole moment (μ) has been evaluated using the single-frequency concentration Higasi approach. The fact that the relaxation time and molar free energy activation of the 1:1 molar ratio are greater than those of other higher molar ratios (i.e. 3:1, 2:1, 1:2, 1:3) confirms the presence of a 1:1 complex structure between the studied systems, as well as a complex formation between the free hydroxyl group of phenols and the carbonyl group of amides. The dielectric relaxation energy parameters (ΔFε, ΔHε and ΔSε) of amides with halogenated phenols in benzene have been computed and compared with the related viscosity parameters. A comparison of these two sets of characteristics reveals that dielectric relaxation, like viscous flow, may be thought of as rate process.

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Density, refractive index, and excess properties of sulfolane and alkanediols binary mixtures at different temperatures

Cited by 19 publications

References 46 publications

Volumetric, Optical, and Spectroscopic Study of Molecular Interactions for Binary Liquid Mixtures of Gamma-Valerolactone with 2-Alkoxyethanols

Volumetric, Optical, and Spectroscopic Study of Molecular Interactions for Binary Liquid Mixtures of Gamma-Valerolactone with 2-Alkoxyethanols

Refractive Indices of Aqueous Solutions of Isomeric Butylamines at 303.15 K: Experimental and Correlative Approach

Dielectric relaxation and dipole moment studies of hydrogen bonded complexes for enanthamide and valeramide with halogenated phenols using J-band microwave frequency

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