Thermodynamic Interactions in Binary Mixtures of 2-Methoxyethanol with Alkyl and Aryl Esters at 298.15, 303.15 and 308.15 K

1993 ◽  
Vol 58 (8) ◽  
pp. 1761-1776 ◽  
Author(s):  
Tejraj M. Aminabhavi ◽  
Shrinivas K. Raikar
Keyword(s):  
Gibbs Energy ◽  
Excess Gibbs Energy ◽  
Excess Volume ◽  
Isentropic Compressibility ◽  
Standard Errors ◽  
Refractive Indices ◽  
Excess Viscosity ◽  
Quadratic Equations ◽  
Gibbs Energy Of Activation ◽  
Excess Isentropic Compressibility

Densities, viscosities, refractive indices, and sound velocities of 2-methoxyethanol + ester mixtures have been measured at 298.15, 303.15 and 308.15 K. These data have been used to calculate excess volume, excess isentropic compressibility, excess refraction, excess viscosity and excess Gibbs energy of activation of flow. These quantities have been fitted to quadratic equations to estimate the parameters and standard errors. The results have been interpreted in term of the intermolecular interactions between the mixing components.

Viscosities and Densities of Binary-Mixtures of 2,2,2-Trichloroethanol With Substituted Anilines

1988 ◽  
Vol 41 (5) ◽  
pp. 791 ◽  
Author(s):  
R Palepu ◽  
JH Macneil
Keyword(s):  
Experimental Data ◽  
Gibbs Energy ◽  
Composition Range ◽  
The Other ◽  
Binary Solvent ◽  
Solvent Mixtures ◽  
Specific Interactions ◽  
Substituted Anilines ◽  
Excess Viscosity ◽  
Gibbs Energy Of Activation

Densities and viscosities of binary solvent mixtures containing 2,2,2-trichloroethanol as one component and aniline and substituted anilines as the other components have been measured over the whole composition range at 298, 303, 308, 313 and 318 K. The experimental data are fitted to a semitheoretical equation of McAllister. Excess viscosity, volume and Gibbs energy of activation of flow have been evaluated, and the departure from ideal behaviour is explained on the basis of specific interactions between the components of this mixture.

Thermodynamic Properties of Binary Liquid Acid–Base Mixtures

1975 ◽  
Vol 53 (9) ◽  
pp. 1258-1262 ◽  
Author(s):  
Horacio N. Sólimo ◽  
Roque Riggio ◽  
Franco Davolio ◽  
Miguel Katz
Keyword(s):  
Propionic Acid ◽  
Excess Volume ◽  
Excess Enthalpy ◽  
Refractive Indices ◽  
Molar Free Energy ◽  
Acid Base ◽  
Excess Viscosity ◽  
Binary Liquid ◽  
Free Energy Of Activation ◽  
Excess Thermodynamic Functions

Viscosities, densities, refractive indices, and enthalpies at 25 °C were determined for the systems: propionic acid + aniline (PA + A ), propionic acid + N,N-dimethylaniline (PA + DMA ), and propionic acid + pyridine (PA + P). From the experimental results the excess volume, excess viscosity, excess molar free energy of activation, and excess enthalpy were calculated. The deviations from ideality for the excess thermodynamic functions are more important for the systems PA + A and PA + P than for PA + DMA. There is evidence for complex formation between propionic acid and aniline in the following molar relation: 2CH3CH2COOH·C6H5NH2.

Thermodynamics of Viscous Flow in Ethane-1,2-diol+Water Binary Mixtures

1995 ◽  
Vol 48 (1) ◽  
pp. 103 ◽  
Author(s):  
F Corradini ◽  
A Marchetti ◽  
M Tagliazucchi ◽  
L Tassi ◽  
G Tosi
Keyword(s):  
Molecular Dynamics ◽  
Gibbs Energy ◽  
Viscous Flow ◽  
Molecular Interactions ◽  
Excess Gibbs Energy ◽  
Thermodynamic Temperature ◽  
Empirical Equations ◽  
Excess Function ◽  
Pure Species ◽  
Gibbs Energy Of Activation

Kinematic viscosities (v) of pure ethane-1,2-diol (component 1) and of nine mixtures with water (component 2) were measured at 19 temperatures ranging from -10 to +80°C, and for binary compositions covering the whole miscibility field expressed by the relation 0 ≤ X1 ≤ 1. The property fitted some empirical equations in terms of the dependences v = v(T) and v(X1), where T is the thermodynamic temperature and X1 is the mole fraction of ethane-1,2-diol. Furthermore, the excess function (vE) and the excess Gibbs energy of activation of viscous flow (∆G*E) have been investigated. The trend of vE against binary composition of the mixtures shows negative deviations from ideal behaviour, while the contrary is true for ∆G*E The results indicate specific molecular interactions between the components, and an overview is given on the basis of the molecular dynamics of the pure species.

Viscosities, Densities, and Refractive Indices of Binary Liquid Mixtures

1971 ◽  
Vol 49 (15) ◽  
pp. 2605-2609 ◽  
Author(s):  
Miguel Katz ◽  
Pedro W. Lobo ◽  
A. Sancho Miñano ◽  
Horacio Sólimo
Keyword(s):  
Free Energy ◽  
Hydrogen Bonds ◽  
Excess Volume ◽  
Liquid Mixtures ◽  
Refractive Indices ◽  
Dispersion Forces ◽  
Molar Free Energy ◽  
Excess Viscosity ◽  
Binary Liquid ◽  
Free Energy Of Activation

The viscosities, densities, and refractive indices at 25, 30, 35, and 40 °C were determined for the systems: aniline + toluene (A + T), N,N-dimethylaniline + toluene (DMA + T), and aniline + n-butanol (A + B). From the experimental results the excess volume, excess viscosity, and excess molar free energy of activation of flow were calculated. The deviations from ideality for the excess thermo dynamic functions are more important for the systems (A + T) and (A + B) than for (DMA + T). This fact is explained by the existence of dispersion forces in the mixture and by the presence of hydrogen bonds in pure aniline and pure butanol.

Mixtures of methyl isobutyl ketone with three butanols at various temperatures

1981 ◽  
Vol 59 (24) ◽  
pp. 3305-3308 ◽  
Author(s):  
Roque Riggio ◽  
Juan F. Ramos ◽  
Mariana Hernandez Ubeda ◽  
José A. Espindola
Keyword(s):  
Excess Volume ◽  
Methyl Isobutyl Ketone ◽  
Refractive Indices ◽  
Methyl Isobutyl ◽  
Primary Alcohols ◽  
Molar Free Energy ◽  
Isobutyl Ketone ◽  
Excess Viscosity ◽  
Free Energy Of Activation ◽  
Excess Thermodynamic Function

The viscosities, densities, and refractive indices at 20, 25, 30, and 35 °C were determined for the systems: methyl isobutyl ketone–n-butanol (MIK–B1), methyl isobutyl ketone–sec-butanol (MIK–B2), and methyl isobutyl ketone–isobutanol (MIK–B3). From the experimental results the excess volume, excess viscosity, and excess molar free energy of activation of flow were calculated. The deviations from ideality for the excess thermodynamic function are more important for the system (MIK–B2) than for the systems (MIK–B3) and (MIK–B1). This fact is explained by the existence of hydrogen bonds in the alcohols, stronger in the primary alcohols than in sec-butanol.

scholarly journals Excess volume and viscosity of binary liquid acid–base mixtures

1976 ◽  
Vol 54 (20) ◽  
pp. 3125-3129 ◽  
Author(s):  
Horacio N. Sólimo ◽  
Roque Riggio ◽  
José A. Espíndola ◽  
Silvia del V. Alonso ◽  
Miguel Katz
Keyword(s):  
Free Energy ◽  
Excess Volume ◽  
Refractive Indices ◽  
Molar Free Energy ◽  
Acid Base ◽  
Excess Viscosity ◽  
Liquid Acid ◽  
Binary Liquid ◽  
Excess Partial Molar Volume ◽  
Free Energy Of Activation

Densities, viscosities, and refractive indices at 25 °C were determined for the systems: o chlorophenol + N,N-dimethylaniline, o-chlorophenol + aniline, o-chlorophenol + m-toluidine, and o-chlorophenol + pyridine. From the experimental results the excess volume, excess viscosity, excess molar free energy of activation of flow, and the excess partial molar volume were calculated. There is evidence of complex formation between o-chlorophenol and the four bases.

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