Viscosity data of binary mixtures: ethyl acetate + cyclohexane, + benzene, + toluene, + ethylbenzene + carbon tetrachloride, and + chloroform at 303.15 K

Oswal, S.L.; Rathnam, Manapragada V.

doi:10.1139/v84-482

Cited by 91 publications

(18 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, the negative contribution to ∆G * E values are attributed to the presence of dispersion forces in the mixtures. Similar conclusion were also arrived at by Reed and Taylor [38] and Oswal and Rathnam [39] who ascribed negative ∆G * E values to the dispersion forces present in the liquid mixtures.…”

Section: Resultssupporting

confidence: 84%

Volumetric, Viscometric, and Ultrasonic Properties of Liquid Mixtures of Cyclohexane with Alkanols at Different Temperatures

Ali

Tasneem

Nabi

2010

Zeitschrift Für Naturforschung A

View full text Add to dashboard Cite

The densities (ρ), viscosities (η), and ultrasonic speeds (u) of pure cyclohexane, 1-butanol, 2-butanol, and those of their binary mixtures, with cyclohexane as common component, covering the whole composition range have been measured at 293.15, 298.15, 303.15, 308.15, 313.15, and 318.15 K. From the experimental data the excess molar volume (V E ), deviations in isentropic compressibility (∆k s ), deviations in viscosity (∆η), deviations in ultrasonic speed (∆u), deviations in acoustic impedance (∆Z), deviations in internal pressure (∆P i ), excess Gibbs free energy of activation (∆G * E ), entropies (∆S * ), and enthalpies (∆H * ) of activation of viscous flow have been determined. The sign and magnitude of these parameters were found to be sensitive towards interactions prevailing in the studied systems. Partial molar volumes (V 0 φ ,2 ) and partial molar compressibilities (K 0 φ ,2 ) of 1-butanol and 2-butanol in cyclohexane have also been evaluated. Moreover, V E values were theoretically predicted by using Flory's statistical theory. The variations of derived parameters mentioned above with composition offer a convenient method to study the nature and extent of interactions between the component molecules of the liquid mixtures, not easily obtained by other means.

show abstract

Section: Resultssupporting

confidence: 84%

Volumetric, Viscometric, and Ultrasonic Properties of Liquid Mixtures of Cyclohexane with Alkanols at Different Temperatures

Ali

Tasneem

Nabi

2010

Zeitschrift Für Naturforschung A

View full text Add to dashboard Cite

show abstract

“…Figures 2 and 3 show that η and G * E values are negative for all four binary systems (benzene + 1-butanol/2-methyl-1-propanol/2-butanol/ 2-methyl-2-propanol) over the complete composition range. The negative η and G * E values indicate the presence of weak interactions between the unlike molecules in the mixture [27,28]. As expected, the values of η and G * E become more negative as the branching in the alcohol molecule increases from 1-butanol to 2-methyl-2-propanol.…”

Section: Resultssupporting

confidence: 67%

Densities, Viscosities, and Refractive Indices of Binary Mixtures of Benzene with Isomeric Butanols at 30°C

Ali

Nain

Lal

et al. 2004

International Journal of Thermophysics

View full text Add to dashboard Cite

The densities, ρ, viscosities, η, and refractive indices, n, of binary mixtures of benzene with 1-butanol, 2-methyl-1-propanol, 2-butanol, and 2-methyl-2-propanol, including those of the pure liquids, were measured over the complete composition range at 30 • C. The dependence of ρ, η, and n on composition was checked by using an empirical relation. The experimental data were used to calculate excess molar volumes, V E , deviations in viscosity, η, excess free energies of activation of viscous flow, G * E , deviations in refractive index, n, apparent molar volumes, V φ,1 and V φ,2 , and partial molar volumes, V • 1 and V • 2 , of benzene in alcohols and alcohols in benzene, respectively, at infinite dilution. The variations of these parameters with composition and the effect of branching in alcohols were discussed from the point of view of intermolecular interactions in these mixtures.

show abstract

“…The negative values of viscosity deviations Dg are noticed in systems with different molecular size where dispersion forces or weak dipole-dipole forces are dominant [30][31][32]. The negative values of viscosity deviation decrease in the following order: pentan-1-ol > hexan-1-ol > heptan-1-ol.…”

Section: Discussionmentioning

confidence: 95%

“…Figure 6 shows the influence of temperature on excess Gibbs free energy of activation. The negative values of G ⁄E indicates that the dispersion forces between DMF and alkan-1-ols molecules are dominant [31][32][33].…”

Section: Discussionmentioning

confidence: 99%

Viscosity and surface tension of binary systems of N,N-dimethylformamide with alkan-1-ols at different temperatures

Mohammad

Alkhaldi

AlTuwaim

et al. 2013

The Journal of Chemical Thermodynamics

View full text Add to dashboard Cite

Viscosity data of binary mixtures: ethyl acetate + cyclohexane, + benzene, + toluene, + ethylbenzene + carbon tetrachloride, and + chloroform at 303.15 K

Cited by 91 publications

References 7 publications

Volumetric, Viscometric, and Ultrasonic Properties of Liquid Mixtures of Cyclohexane with Alkanols at Different Temperatures

Volumetric, Viscometric, and Ultrasonic Properties of Liquid Mixtures of Cyclohexane with Alkanols at Different Temperatures

Densities, Viscosities, and Refractive Indices of Binary Mixtures of Benzene with Isomeric Butanols at 30°C

Viscosity and surface tension of binary systems of N,N-dimethylformamide with alkan-1-ols at different temperatures

Contact Info

Product

Resources

About