Excess Molar Volumes, Intermolecular Free Lengths, Adiabatic Compressibilities and Acoustic Impedance of Binary Mixtures of Anisole, Toluene and Ethylbenzene with Dioxane at Different Temperatures

Dahire, S. L.; Morey, Y. C.; Agrawal, Pratibha S.

doi:10.18052/www.scipress.com/ilcpa.42.72

Cited by 3 publications

(4 citation statements)

References 2 publications

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“…The sign and magnitude of excess molar volumes are often attributed to a number of factors which are classified into chemical, physical and structural contributions 16,25 . Physical factors involving nonspecific interactions due to dispersive forces, dipole-dipole interactions, result in positive excess molar volumes which are indicative of the breaking of liquid order or bonds upon mixing.…”

Section: Methodsmentioning

confidence: 99%

Volumetric Behavior of Binary Mixtures of Tetrahydrofuran and C1-C4 Alkoxyethanols at Different Temperatures

2019

Chem Sci Trans

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The volumetric behavior of binary mixtures of tetrahydrofuran (THF) +2-methoxyethanol (2-MeOEtOH), + 2-ethoxyethanol (2-EtOEtOH) and 2-butoxyethanol (2-BuOEtOH) were studied at 293.15, 298.15 and 303.15 K to identify the types and strengths of intermolecular interactions taking place in the solvent systems. The densities, ρ, of the pure solvents and the binary mixtures ranging from 0.0003-0.9997 of THF were obtained at the working temperatures. Excess molar volumes, V E , of the binary mixtures were calculated from the density data. The calculated excess molar volumes were fitted into the Redlich-Kister polynomial and the fitting coefficients, A i , obtained. The values of excess molar volumes were negative in all the solvent systems and at all temperatures in the mole fraction region of0.00-0.50 THF. Beyond the mole fraction region of 0.50, the excess molar volumes were slightly positive. The negative excess molar volumes in the region of low THF concentration are attributed to intermolecular hydrogen bonding between unlike molecules of THF and the alkoxyethanols. The magnitudes of the negative excess molar volumes were also found to be dependent upon the chain length of the alkoxy group and the temperature. The results show that the excess molar volumes become more negative when the chain length of the alkoxy group increased and this was attributed to the relative proton-donating ability of the alkoxyethanols investigated.

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Section: Methodsmentioning

confidence: 99%

Volumetric Behavior of Binary Mixtures of Tetrahydrofuran and C1-C4 Alkoxyethanols at Different Temperatures

2019

Chem Sci Trans

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“…The intermolecular free length increases with the temperature. The evolution of the L f (in m) with temperature (in °C) was modelled by Oroian and Gutt 30 using a polynomial model as

L_{f, sunflower oil} = 2.97 \times 1 0^{- 16} T^{2} + 1.18 \times 1 0^{- 13} T + 2.03 \times 1 0^{- 11}

L_{f, sesame oil} = 3.45 \times 1 0^{- 16} T^{2} + 1.17 \times 1 0^{- 13} T + 2.06 \times 1 0^{- 11}

The deviation in intermolecular free length of the pseudo‐binary mixtures,

L_{f}^{E}

, is calculated as 42,45

L_{f}^{E} = L_{f, m} - false(x_{c} L_{f, c} + x_{s} L_{f, s} false)

…”

Section: Equations For Modelling Of Datamentioning

confidence: 99%

“…The deviation in acoustic impedance of the pseudo‐binary mixtures, Z E , is calculated as 42,45

Z^{E} = Z_{m} - false(x_{c} Z_{c} + x_{s} Z_{s} false)

…”

Section: Equations For Modelling Of Datamentioning

confidence: 99%

“…The values of viscosity deviation, excess molar volume, surface tension, ultrasonic velocity and acoustic impedance for each mixture have been fitted to Redlich–Kister polynomial (hereafter referred to as RKP) function equation 8,38,45–47 through least squares method by taking the limits

i = 0

to n .

f = x_{c} false(1 - x_{c} false) true \sum_{i = 0}^{n} A_{i} {false(2 x_{c} - 1 false)}^{i}

where f refers to Δ η , V E , S E , U E or Z E and A i is the regression coefficient of the i th term.…”

Section: Equations For Modelling Of Datamentioning

confidence: 99%

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Spectroscopic, thermodynamic and ultrasonic properties of pseudo‐binary mixtures of organic extractants and vegetable oil at 25–60°C under atmospheric pressure

Sarkar

Mondal

Beriya

et al. 2021

Asia-Pacific J Chem Eng

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This work is intended to investigate the molecular interactions and transport properties of five pseudo‐binary mixtures of various combinations of vegetable oils (sesame oil and sunflower oil) and organic extractants (Aliquat 336, TBP, D2EHPA and TOA) by determining their surface tension, density and viscosity over a temperature range of 25–60°C at atmospheric pressure. The experimental data are fitted into various literature models. Information on excess molar volume and viscosity deviation leads to an understanding of solute–solvent interactions. Further, the ultrasonic velocity, isentropic compressibility, intermolecular free length, specific impedance, apparent molar volume, volumetric thermal expansion coefficient, excess Gibbs' free energy, change in enthalpy of mixing and entropy of activation of the liquids have been calculated. A model relating the surface tension, density and viscosity of the pseudo‐binary mixtures has been proposed in this paper. Analysis of Fourier transform infrared (FTIR) studies has further illustrated the intermolecular interactions in the pseudo‐binary mixtures.

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Investigation of molecular interactions in binary mixtures (dichloromethane + aliphatic alcohols) at T= (298.15 to 308.15) K: Experimental, ERAS analyses and COSMO-RS predictions

Nabi

Yau

Jesudason

2016

Journal of Molecular Liquids

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Excess Molar Volumes, Intermolecular Free Lengths, Adiabatic Compressibilities and Acoustic Impedance of Binary Mixtures of Anisole, Toluene and Ethylbenzene with Dioxane at Different Temperatures

Cited by 3 publications

References 2 publications

Volumetric Behavior of Binary Mixtures of Tetrahydrofuran and C1-C4 Alkoxyethanols at Different Temperatures

Volumetric Behavior of Binary Mixtures of Tetrahydrofuran and C1-C4 Alkoxyethanols at Different Temperatures

Spectroscopic, thermodynamic and ultrasonic properties of pseudo‐binary mixtures of organic extractants and vegetable oil at 25–60°C under atmospheric pressure

Investigation of molecular interactions in binary mixtures (dichloromethane + aliphatic alcohols) at T= (298.15 to 308.15) K: Experimental, ERAS analyses and COSMO-RS predictions

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