The Relative Reduced Redlich–Kister Equations for Correlating Excess Properties of N,N-Dimethylacetamide + Water Binary Mixtures at Temperatures from 298.15 K to 318.15 K

Das, D.; Messaâdi, A.; Barhoumi, Z.; Ouerfelli, N.

doi:10.1007/s10953-012-9888-2

Cited by 23 publications

(20 citation statements)

References 40 publications

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“…So, we observe that the shape of curves is totally different of those in Fig. 1 because Redlich and Kister treated the data with a power series, putting all the weight on data near 0.5 mole fraction [9][10][11][12][13][14][15][16] . As Desnoyers et al have shown 9 , this is not always the best approach for mixtures having specific interactions such as association at low concentration.…”

Section: The Reduced Redlich-kister Equationsmentioning

confidence: 80%

“…We note that the reduced R-K excess property is more sensitive than the direct excess property V E ,  or G* E to interactions that occurs at low concentrations [9][10][11][12][13][14][15][16] . So, we observe that the shape of curves is totally different of those in Fig.…”

Section: The Reduced Redlich-kister Equationsmentioning

confidence: 82%

“…As discussed in literature [9][10][11][12][13][14][15][16] , it can also readily be shown that, for many thermodynamic properties, such as enthalpies, heat capacities, volumes, compressibilities and expansibilities, this quantity (Q Y,T (x 1 )) is directly related to the apparent molar quantities of both components:…”

Section: The Reduced Redlich-kister Equationsmentioning

confidence: 95%

“…So, the excess quantity gives an overall view of the origin of the non-ideality in the mixtures but still can be quite misleading. Then, elimination of the factor (molar fraction product x 1 .x 2 ) preceding the RedlichKister power series removes this similarity effect and gives a specific reduced function [9][10][11][12][13][14][15][16] characterizing the studied physicochemical property and also gives evidence to the existence of important interactions hidden in the precedent classical investigations.…”

Section: Introductionmentioning

confidence: 99%

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On the reduced Redlich-Kister excess properties for 1,2-dimethoxyethane with propylene carbonate binary mixtures at temperatures (from 298.15 to 318.15) K.

Salhi

Babu²,

Al-Eidan³

et al. 2017

Mediterr.J.Chem.,

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Values of excess properties in 1,2-dimethoxyethane + propylene carbonate binary liquid mixtures at different temperatures from experimental density and viscosity values presented in earlier work, were used to test the applicability of the correlative reduced Redlich-Kister functions and the Belda equation, and to reveal eventual specific interaction hidden by the classical treatment of direct excess Redlich-Kister functions. Their correlation ability at different temperatures, and the use of different numbers of parameters, is discussed for the case of limited experimental data. The relative Redlich-Kister functions are important to reduce the effect of temperature and, consequently, to reveal the effects of different types of interactions. Values of limiting excess partial molar volume at infinite dilution deduced from different methods were discussed. Also, the activation parameters and partial molar Gibbs free energy of activation of viscous flow against compositions were investigated. Correlation between the two Arrhenius parameters of viscosity shows the existence of main different behaviors separated by a stabilized structure in a short range of mole fraction in 1,2-dimethoxyethane (0.45 to 0.83). In this context, the correlation Belda equation has also been applied to the present system for thermodynamic properties in order to reveal eventual solute-solvent interaction at high dilution.

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Section: The Reduced Redlich-kister Equationsmentioning

confidence: 80%

Section: The Reduced Redlich-kister Equationsmentioning

confidence: 82%

Section: The Reduced Redlich-kister Equationsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

On the reduced Redlich-Kister excess properties for 1,2-dimethoxyethane with propylene carbonate binary mixtures at temperatures (from 298.15 to 318.15) K.

Salhi

Babu²,

Al-Eidan³

et al. 2017

Mediterr.J.Chem.,

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“…where the reduced Redlich-Kister property Q RK,Y (x 1 ) is expressed as follows [9][10][11][12][13][14][15][16][17][18][19][20]:…”

Section: Introductionmentioning

confidence: 99%

An Extended Belda Equation for Physico-chemical Properties Correlation in Binary Liquid Mixtures at Different Temperatures

Messaâdi¹,

Alkhaldi²,

Alzamel³

et al. 2017

Asian J. Chem.

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INTRODUCTIONPhysico-chemical features of fluid systems are essential for recognizing different thermodynamic behaviours. Diverse physico-chemical characteristics such as density, molar volume, viscosity, surface tension and refractive index should be considered for optimizing and designing fluids [1,2].Some published articles concerning the physico-chemical quantities of fluid show that the majority of them display nonideal behaviour or not arranged in a straight line. Accordingly, the estimations of the above quantities or their variations necessitate empirical or semi-empirical formulae able to give a consistent estimation of their specific features [3][4][5].The present research suggests an extension of Belda equation [5][6][7] giving dependable assessment of the special physicochemical or thermodynamic quantities (density, viscosity, molar volume, surface tension and refractive index, etc.) of dual combinations of fluids against of mole composition. The judgment of the investigational data of those quantities versus Belda model and our proposed extension has been carried out.Correlation equations: For most cases mixing operations in applied chemistry and in industrial engineering is difficult due to the non-straight line performance. Then, accurate statistics have to be obtainable with forms able to furnishing a consistent judgment of physical and chemical properties for different behaviours of liquid mixtures. In general, the theoretical description of concepts related to properties is therefore quite complex and exact explicit expressions are absent. This is the reason why several models have been suggested, extended and/ or modified over the years referred on some theories, or empirical and semi-empirical equations which are constantly unrelated to every kind of binary liquid mixtures. Moreover, investigations on the physico-chemical quantities of dual mixtures show that a large amount of them reveal non-ideal or non-linear behaviours. Consequently, the search of these quantities or their excess or variations necessitates mathematical expressions eligible of giving a valid approximation of their behaviours [1][2][3][4][5][6][7][8]. An Extended Belda Equation for Physico-chemical Properties Correlation in Binary Liquid Mixtures at Different TemperaturesIn the present work, different properties (Y) were correlated with molar composition using the Belda [5] correlation equation and our proposed extension which uses a correcting factor to the linearity. The equation has been applied at least to 26 binary liquid mixtures. The validity versus the magnitude and accuracy of the adjustable parameters is compared and discussed for each property.

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Viscosity Arrhenius Activation Energy and Derived Partial Molar Properties in Isobutyric Acid + Water Binary Mixtures Near and Far Away from the Critical Temperature, 302.15 to 313.15 K

et al. 2015

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The Relative Reduced Redlich–Kister Equations for Correlating Excess Properties of N,N-Dimethylacetamide + Water Binary Mixtures at Temperatures from 298.15 K to 318.15 K

Cited by 23 publications

References 40 publications

On the reduced Redlich-Kister excess properties for 1,2-dimethoxyethane with propylene carbonate binary mixtures at temperatures (from 298.15 to 318.15) K.

On the reduced Redlich-Kister excess properties for 1,2-dimethoxyethane with propylene carbonate binary mixtures at temperatures (from 298.15 to 318.15) K.

An Extended Belda Equation for Physico-chemical Properties Correlation in Binary Liquid Mixtures at Different Temperatures

Viscosity Arrhenius Activation Energy and Derived Partial Molar Properties in Isobutyric Acid + Water Binary Mixtures Near and Far Away from the Critical Temperature, 302.15 to 313.15 K

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