Excess volume, changes of refractive index and surface tension of binary 1,2-ethanediol + 1-propanol or 1-butanol mixtures at several temperatures

Jiménez, E.; Cabañas, M.V.; Segade, Luisa; Garcı́a-Garabal, Sandra; Casas, Herminio

doi:10.1016/s0378-3812(00)00519-7

Cited by 125 publications

(71 citation statements)

References 18 publications

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“…It is observed from Table IV that ], introduced by Sudgen, has been calculated by using density thereby follows the same behavior. Earlier workers [31][32][33] also arrived at the same conclusion about Sudgen's method for evaluation of surface tension. Brock and Bird theory is found to give large deviations in case of THF + methanol in methanol rich region.…”

Section: Resultsmentioning

confidence: 63%

Thermoacoustical Excess Properties of Binary Liquid Mixtures - A Comparative Experimental and Theoretical Study

et al. 2009

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Specific heat ratio (γ), pseudo-Grüneisen parameter (Γ ), heat capacity (C p ) and effective Debye temperature (θ D ) for binary system of tetrahydrofuran with o-cresol and methanol respectively, were calculated using the experimentally measured densities, velocities and viscosities of the pure liquids and their mixtures over the whole composition range and at T = 293, 303, 313 K. The excess pseudo-Grüneisen parameter (Γ E ), excess molar isentropic compressibility (K E s ) and excess acoustic impedance (Z E ) were also calculated. The excess deviation functions have been correlated using Redlich-Kister polynomial equation. The observed values of the excess parameters plotted against the mole fraction of tetrahydrofuran have been explained on the basis of intermolecular interaction suggesting strong interaction in tetrahydrofuran + o-cresol than in tetrahydrofuran + methanol. Partial molar isentropic compressibility at infinite dilution and their excess values were calculated for each component. Sanchez theory, Goldsach-Sarvas volume fraction statistics, Sudgen's relation, Flory-Patterson-Rastogi and Brock and Bird model were used with the Aurebach relation to compute theoretically the values of ultrasonic velocities at varying temperatures. The velocity deviations were estimated in terms of average percentage deviations. Internal pressure for both the systems were calculated theoretically and discussed on the basis of relative applicability of the models in theoretical estimations. The isothermal compressibility (k T ), for these binary mixtures were theoretically evaluated by using the Flory statistical theory and five hard sphere models and compared with the experimental values.

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Section: Resultsmentioning

confidence: 63%

Thermoacoustical Excess Properties of Binary Liquid Mixtures - A Comparative Experimental and Theoretical Study

et al. 2009

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“…The temperature of the test liquids during the measurements was maintained to an uncertainty of ±0.01 K in an electronically controlled thermostatted water bath (Model ME-31A, Julabo, Germany). The reliability of the experimental density measurements was demonstrated by comparisons of the experimental data for the pure liquids with values available in the literature [19,[21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39] at the studied temperatures. This comparison is given in Table I, and the agreement between the experimental and literature values is, in general, good.…”

Section: Methodsmentioning

confidence: 99%

Densities and Volumetric Properties of Binary Mixtures of Aniline with 1-Propanol, 2-Propanol, 2-Methyl-1-Propanol, and 2-Methyl-2-Propanol at Temperatures from 293.15 to 318.15 K

Nain

2007

Int J Thermophys

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The densities of binary mixtures of aniline with 1-propanol, 2-propanol, 2-methyl-1-propanol, and 2-methyl-2-propanol were measured over the entire composition range, along with the pure components, at temperatures of 293.15, 298.15, 303.15, 308.15, 313.15, and 318.15 K and atmospheric pressure. Using the experimental data, the excess molar volumes, V E m , and the temperature coefficients of the excess molar volume, ∂ V E m /∂ T for the binary mixtures were calculated. The variations of these parameters with composition and temperature of the mixtures have been discussed in terms of molecular interactions in these mixtures. The V E m values were found negative for all the mixtures at each temperature studied, indicating the presence of specific interactions between aniline and alkanol molecules. The extent of negative deviations in V E m values follows the order: 1-propanol < 2-propanol < 2-methyl-1-propanol < 2-methyl-2-propanol. It is observed that the V E m values depend upon the positions of hydroxyl and methyl groups in these alkanol molecules.

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“…Surface tension is one of the very important physical properties that determine the suitability of a given liquid in mass transfer processes such as emulsification or separation [21]- [23]. There is limited information on the surface tension of Deep Eutectic Solvents in literature.…”

Section: Surface Tensionmentioning

confidence: 99%

Potassium Carbonate as a Salt for Deep Eutectic Solvents

Naser¹,

Mjalli²,

Jibril³

et al. 2013

IJCEA

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Excess volume, changes of refractive index and surface tension of binary 1,2-ethanediol + 1-propanol or 1-butanol mixtures at several temperatures

Cited by 125 publications

References 18 publications

Thermoacoustical Excess Properties of Binary Liquid Mixtures - A Comparative Experimental and Theoretical Study

Thermoacoustical Excess Properties of Binary Liquid Mixtures - A Comparative Experimental and Theoretical Study

Densities and Volumetric Properties of Binary Mixtures of Aniline with 1-Propanol, 2-Propanol, 2-Methyl-1-Propanol, and 2-Methyl-2-Propanol at Temperatures from 293.15 to 318.15 K

Potassium Carbonate as a Salt for Deep Eutectic Solvents

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