Experimental values and ERAS model calculations for excess molar volumes and enthalpies of the ternary system 2-butanol + 1,3-dioxolane + cyclohexane

2003 ◽  
Vol 81 (5) ◽  
pp. 357-363 ◽  
Author(s):  
Ignacio Gascón ◽  
Santiago Martín ◽  
Beatriz Giner ◽  
Marta Haro ◽  
Carlos Lafuente
Keyword(s):  
Ternary System ◽  
Excess Molar Volumes ◽  
Excess Properties ◽  
Model Calculations ◽  
Molar Volumes ◽  
Eras Model ◽  
System 2 ◽  
Excess Molar Properties ◽  
Experimental Values ◽  
Kister Equation

Densities and heats of mixing for the ternary system 2-butanol + 1,3-dioxolane + cyclohexane have been measured at 298.15 and 313.15 K. Excess molar volumes and excess molar enthalpies have been calculated from experimental data and fitted by the Redlich–Kister equation. The ERAS model has been used to calculate excess molar properties of the ternary mixture from parameters obtained from the constituent binary mixtures.Key words: excess properties, ERAS model.

Densities, refractive indices and excess properties of mixing of the n-octanol + 1,4-dioxane + 2-butanol ternary system at 298.15 K

2000 ◽  
Vol 78 (8) ◽  
pp. 1121-1127 ◽  
Author(s):  
Alberto G Camacho ◽  
Miguel A Postigo ◽  
Graciela C Pedrosa ◽  
Inés L Acevedo ◽  
Miguel Katz
Keyword(s):  
Ternary System ◽  
Physical Properties ◽  
Binary Mixtures ◽  
Binary Data ◽  
Excess Molar Volumes ◽  
Excess Properties ◽  
Refractive Indices ◽  
Molar Volumes ◽  
Experimental Values

Excess molar volumes and excess refractive indices of the n-octanol + 1,4-dioxane + 2-butanol system and the three corresponding binary mixtures have been determined at 298.15 K by measuring densities and refractive indices. Different expressions exist in the literature to predict these excess properties from binary data. An estimation of excess molar volumes is also evaluated using a modified Heller equation which depends on the refractive indices of the mixtures. A comparison of the predictions of different methods with the experimental values of the physical properties has been made.Key words: excess molar volumes, densities, refractive indices, n-octanol, 1,4-dioxane, 2-butanol, ternary system.

Excess molar volumes and enthalpies of the ternary system (2-butanol + 1,3-dioxolane + n-hexane) at 298.15 and 313.15K

2004 ◽  
Vol 423 (1-2) ◽  
pp. 49-55 ◽  
Author(s):  
Ignacio Gascón ◽  
Marı́a C. López ◽  
Carlos Lafuente ◽  
Félix M. Royo ◽  
Pilar Cea
Keyword(s):  
Ternary System ◽  
Excess Molar Volumes ◽  
Molar Volumes ◽  
System 2

Excess Molar Enthalpies and Excess Molar Volumes of the Ternary System 1,2-Dichlorobenzene + Benzene + 1-Chlorohexane at 298.15 K

2003 ◽  
Vol 48 (3) ◽  
pp. 646-651 ◽  
Author(s):  
Marta M. Mato ◽  
Manuel López ◽  
José Luis Legido ◽  
Josefa Salgado ◽  
Pedro V. Verdes ◽  
...  
Keyword(s):  
Ternary System ◽  
Excess Molar Volumes ◽  
Excess Molar Enthalpies ◽  
Molar Volumes

scholarly journals Vapor pressure, density, viscosity and refractive index of dimethyl sulfoxide + 1,4-dimethylbenzene system

2008 ◽  
Vol 73 (1) ◽  
pp. 73-85 ◽  
Author(s):  
Oana Ciocirlan ◽  
Olga Iulian
Keyword(s):  
Dimethyl Sulfoxide ◽  
Excess Molar Volumes ◽  
Excess Properties ◽  
Refractive Indices ◽  
Excess Functions ◽  
Liquid Equilibrium ◽  
Viscosity Deviations ◽  
Unifac Model ◽  
Equilibrium Data ◽  
Kister Equation

This paper reports the experimental results of isothermal vapor-liquid equilibrium data between 303.15 and 333.15 K, and densities, viscosities, refractive indices from 298.15 to 323.15 K of the dimethyl sulfoxide + 1,4-dime?thylbenzene system over the entire range of mixture composition. The obtained PTX data were correlated by the Wilson and NRTL models and estimated by the UNIFAC model. The excess Gibbs energy and activity coefficients were calculated and compared with others excess properties. Excess molar volumes, viscosity deviations and deviations in refractivity were calculated from the experimental data; all the computed quantities were fitted to the Redlich-Kister equation. The resulting excess functions were interpreted in terms of structure and interactions.

Excess Molar Volumes of Some Hydrogen-Bonded Complexes at 298.15 K and the Application of the ERAS Model

1996 ◽  
Vol 41 (3) ◽  
pp. 639-643 ◽  
Author(s):  
Trevor M. Letcher ◽  
Bradley C. Bricknell
Keyword(s):  
Excess Molar Volumes ◽  
Molar Volumes ◽  
Eras Model ◽  
Bonded Complexes ◽  
Hydrogen Bonded

scholarly journals Volumetric, Viscometric and Excess Properties of Binary Mixtures of 1-Iodobutane with Benzene, Toluene, o-Xylene, m-Xylene, p-Xylene, and Mesitylene at Temperatures from 303.15 to 313.15 K

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Sangita Sharma ◽  
Khushbu Thakkar ◽  
Paras Patel ◽  
Madhuresh Makavana
Keyword(s):  
Binary Mixtures ◽  
Excess Molar Volumes ◽  
Polynomial Equation ◽  
Pure Component ◽  
Excess Properties ◽  
Excess Gibbs Free Energy ◽  
Free Energy Of Activation ◽  
Empirical Relations ◽  
Benzene Toluene ◽  
Experimental Values

Densities and viscosities have been determined for binary mixtures of 1-iodobutane with benzene, toluene, o-xylene, m-xylene, p-xylene, and mesitylene at 303.15, 308.15, and 313.15 K for the entire composition range at atmospheric pressure. The excess molar volumes, , deviations in viscosity, Δη, and excess Gibbs’ free energy of activation flow, Δ have been calculated from the experimental values. The experimental data were fitted to Redlich-Kister polynomial equation. The variations of these parameters with composition of the mixtures and temperature have been discussed in terms of molecular interactions occurring in these mixtures. Further, the viscosities of these binary mixtures were calculated theoretically from their corresponding pure component data by using empirical relations like Bingham, Arrhenius and Eyring, Kendall and Munroe, Hind, Katti and Chaudhari, Grunberg and Nissan, and Tamura and Kurata. Comparison of various interaction parameters has been expressed to explain the intermolecular interactions between iodobutane and selected hydrocarbons.

Excess molar volumes of the (cyclohexane + pentane, or hexane, or heptane, or octane, or nonane) systems at the temperature 298.15 K

2007 ◽  
Vol 61 (6) ◽  
Author(s):  
J. Balán ◽  
L. Morávková ◽  
J. Linek
Keyword(s):  
Maximum Likelihood ◽  
Fourth Order ◽  
Excess Molar Volumes ◽  
The Other ◽  
Likelihood Principle ◽  
Molar Volumes ◽  
Maximum Likelihood Principle ◽  
Vibrating Tube Densimeter ◽  
Kister Equation

AbstractThe densities of the (cyclohexane + pentane, or hexane, or heptane, or octane, or nonane) systems were measured at the temperature 298.15 K by means of a vibrating-tube densimeter. Their respective excess molar volumes were calculated and correlated using the fourth-order Redlich—Kister equation, with the maximum likelihood principle being applied in the determination of the adjustable parameters. The values of excess molar volumes were negative for the cyclohexane + pentane system, whereas they were positive for the other systems with the values increasing with the number of carbon atoms in the respective alkane molecules.

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