Volumetric, viscosimetric and surface properties of aqueous solutions of triethylene glycol, tetraethylene glycol, and tetraethylene glycol dimethyl ether

Begum, Syeda K.; Clarke, Ronald J.; Ahmed, M. Jamaluddin; Begum, Shahanara; Saleh, Mohammad A.

doi:10.1016/j.molliq.2012.09.015

Cited by 73 publications

(36 citation statements)

References 31 publications

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“…Contrarily, the formation of hydrogen bond (NH•••HO and HO•••HO) between ethanol and alcohol amine molecules could make a negative volume contribution. 30,31 The geometrical factors, including the molecules size, shape and packing effect between different molecules, could lead to the shrinkage of volume due to the diversity of free volumes or difference of molecular structure. The positive or negative values of V E depend on the competition among three factors.…”

Section: Resultsmentioning

confidence: 99%

Volumetric and Viscometric Properties of Alcohol Amines + Ethanol Binary Mixtures

Liu

Zhu

2017

J. Chem. Eng. Data

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The densities and viscosities of four binary mixtures [1-amino-2-propanol + ethanol, N-(2-aminoethyl) ethanolamine + ethanol, 3-amino-1-propanol + ethanol, N-(2-aminoethyl)-1,2-ethanediamine + ethanol] were measured at T = 293.15, 303.15, 313.15, and 323.15 K. The volumetric and viscometric properties, such as excess molar volume V E, partial molar volume V̅, partial molar volume at infinite dilution V̅ ∞, apparent molar volume V φ, viscosity deviation Δη, and activation energy for viscosity flow E a, were calculated from the experimental densities and viscosities, respectively. The excess molar volume and viscosity deviation were correlated by the Redlich–Kister equation, and the volumetric and viscometric properties were analyzed on the basis of intermolecular interactions between alcohol amine and ethanol molecules.

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Section: Resultsmentioning

confidence: 99%

Volumetric and Viscometric Properties of Alcohol Amines + Ethanol Binary Mixtures

Liu

Zhu

2017

J. Chem. Eng. Data

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“…The shown in Equation ( 22) is similar to the term in the Grunberg and Nissan [39] model. Figure 4a-c The slope of the excess free energy of activation for viscous flow ∆G E * against temperature (T) carries the information about the excess entropy of activation for viscous flow ∆S E * as given in Equation (23). The plot of ∆G E * versus temperature (T) was linear in the temperature range from 293.15 K to 363.15 K at a certain mole fraction for the mixtures studied.…”

Section: Viscosity Of the Binary Mixturesmentioning

confidence: 94%

“…The introduction of methyl (-CH 3 ) or ethyl (-CH 2 CH 3 ) groups increases the hydrophobicity of amine [19]. As explained by Begum et al [23], the H 2 O molecules restructure around the hydrophobic part of the organic solute forming a cage-like structure. Accordingly, more structured H 2 O molecules around the hydrophobic groups (-CH 3 ) and (-CH 2 CH 3 ) in DMEA and DEEA, respectively, might explain the reported volume contraction in the mixtures.…”

Section: 𝑉 = 𝑉 − (𝑥 𝑉 + 𝑥 𝑉 )mentioning

confidence: 98%

“…The sign of 𝑉 carries information of intermolecular interactions and molecular structure of the molecules in a mixture. The excess molar volume 𝑉 becomes negative when the intermolecular interaction between unlike molecules are stronger than that in like molecules [22,23]. Further, 𝑉 is negative when the molecules are efficiently packed in the solution [24].…”

Section: Density and Excess Molar Volume Of The Binary Mixturesmentioning

confidence: 99%

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Density, Viscosity, and Excess Properties of MDEA + H2O, DMEA + H2O, and DEEA + H2O Mixtures

2020

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This study presents measured density and viscosity of N-methyldiethanolamine (MDEA) + H2O, Dimethylethanolamine (DMEA) + H2O, and Diethylethanolamine (DEEA) + H2O mixtures. The density was measured at amine mass fraction w1 from 0.3 to 1 for the temperature range 293.15–353.15 K. The excess molar volumes VE were determined from density data. Redlich–Kister type polynomials were proposed to fit VE and density deviation ln(ργ) to represent measured densities. The viscosity was measured at amine mass fraction w1 from 0.3 to 1 for the temperature range 293.15–363.15 K. The viscosity deviation ηE and excess free energy of activation for viscous flow ΔGE* were determined from measured viscosities and examined for intermolecular interactions among mixture molecules. Correlations were proposed to fit viscosity data with acceptable accuracies. The McAllister’s three-body model was adopted to fit kinematic viscosities determined from density and dynamic viscosity data. The results showed the importance of examining intermolecular interactions that are discussed in McAllister’s four-body model to improve the accuracies of data fits.

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“…In addition, with the number of materials, the experimental problems increase dramatically. As a result, several papers on the prediction of physicochemical properties such as molar volume, molar enthalpy, density, viscosity and refractive indices have been published in recent decades [1][2][3][4][5][6][7][8][9]. In this paper, the excess molar volume of quaternary system n-hexanol + ethanenitrile + dichloromethane + tetrahydrofuran at 298.15 K is determinate by using Toop model [10], Hillert model [11], Kohler model [12], Muggianu model [13] and Chou model [14,15].…”

Section: Introductionmentioning

confidence: 99%

298,15 K de Dörtlü Sıvı Karışımların Fazla Molar Hacimlerinin Tahmini

Arslan

2021

Süleyman Demirel Üniversitesi Fen Edebiyat Fakültesi Fen Dergisi

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The excess molar volumes for the ternary n-hexanol + ethanenitrile + dichloromethane and quaternary system n-hexanol + ethanenitrile + dichloromethane + tetrahydrofuran at 298.15K has been calculated by using symmetric and asymmetric models. Chou's General solution model has been employed to evaluate the excess molar volume of the ternary n-hexanol + ethanenitrile + dichloromethane and quaternary systems in the n-hexanol + ethanenitrile + dichloromethane + tetrahydrofuran. The good agreement between experimental data and calculated results of excess molar volumes for both mixture systems indicates that this approach can be successfully used to predict the excess molar volumes of multicomponent systems.

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Volumetric, viscosimetric and surface properties of aqueous solutions of triethylene glycol, tetraethylene glycol, and tetraethylene glycol dimethyl ether

Cited by 73 publications

References 31 publications

Volumetric and Viscometric Properties of Alcohol Amines + Ethanol Binary Mixtures

Volumetric and Viscometric Properties of Alcohol Amines + Ethanol Binary Mixtures

Density, Viscosity, and Excess Properties of MDEA + H2O, DMEA + H2O, and DEEA + H2O Mixtures

298,15 K de Dörtlü Sıvı Karışımların Fazla Molar Hacimlerinin Tahmini

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