Studies on molecular interactions in binary liquid mixtures by viscosity and ultrasonic velocity measurements at 303.15 K

Ali, Anwar; Hyder, S.; Nain, Anil Kumar

doi:10.1016/s0167-7322(98)00105-6

Cited by 113 publications

(67 citation statements)

References 15 publications

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“…The observed negative deviation in ∆Z, where Z = uρ, and an opposite trend in ∆k s , where k = 1/u 2 ρ, over the whole composition range support our view regarding the structural order and, hence, intermolecular interactions in these mixtures. Similar conclusion regarding the ∆Z values were also drawn by Ali et al [37] for ethanol + 1-hexanol/1-octanol and acetonitrile + N,Ndimethylformamide binary mixtures.…”

Section: Resultssupporting

confidence: 88%

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

Ali

Tasneem

Nabi

2010

Zeitschrift Für Naturforschung A

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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.

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Section: Resultssupporting

confidence: 88%

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

Ali

Tasneem

Nabi

2010

Zeitschrift Für Naturforschung A

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“…In general, u and L f vary in a reciprocal manner with the mole fraction, x 1 , of a mixture [43,44]. A perusal of Table 2 reveals that the values of u decrease with an increase in x 1 of halohydrocarbons for all the binary mixtures under consideration (Fig.…”

Section: Resultsmentioning

confidence: 92%

Densities, Excess Molar Volumes, Ultrasonic Speeds, and Isentropic Compressibilities of Hexan-1-ol with 1,2-Dichloroethane, 1,2-Dibromoethane, and 1,1,2,2-Tetrachloroethene at (293.15 and 298.15) K

Bhatia

Dubey

2010

Int J Thermophys

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Densities, ρ, and ultrasonic speeds, u, of binary mixtures of hexan-1-ol with 1,2-dichloroethane, 1,2-dibromoethane, and 1,1,2,2-tetrachloroethene have been measured over the entire range of composition at (293.15 and 298.15) K and atmospheric pressure. From these data, the excess molar volumes, V E , deviations of ultrasonic speed, u D , from the ultrasonic speed of an ideal mixture, excess molar isentropic compressibilities, κ E S,m , intermolecular free lengths, L f , mean molecular radii, r , and thermal expansion coefficients, α, have been calculated. The experimental ultrasonic speeds have been analyzed in terms of Nomoto's, Van Dael's ideal mixture, and Junjie relations; Jacobson's free length and Schaaffs' collision factor theories; and thermoacoustical parameters.

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“…Thus, the linearity of molar sound velocity and additivity of molar volumes, as suggested by Nomoto Van Dael and Vangeel, and Impedance relation, in deriving the empirical relations have been truly observed in the aforementioned binary liquid mixtures. The success of Nomoto's relation in predicting the experimental ultrasonic velocities for non-polar-polar liquid mixtures has also been emphasized by others [30,31].…”

Section: Discussionmentioning

confidence: 86%

Theoretical Evaluation of Ultrasonic Velocities in Binary Liquid Mixtures of Anisaldehyde with Some Alcoxyethanols at Different Temperatures

Begum

Sri

Rambabu

2012

ISRN Physical Chemistry

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Ultrasonic velocities and densities of the binary liquid mixtures of anisaldehyde with alcoxyethanols like methoxyethanol (MOE), ethoxyethanol (EOE), and butoxyethanol (BOE) have been measured at temperatures 303.15 K, 308.15 K, 313.15 K, and 318.15 K over the entire composition range of mole fractions. The theoretical values of ultrasonic velocity were evaluated using Nomoto's relation (U NR ), impedance relation (U IR ), ideal mixing relation (U IMR ), Jungie's relation (U JR ), and Rao's specific velocity relation (U R ). The molecular interaction parameter (χ) has been evaluated from the values of experimental and theoretical velocities. The variation of this interaction parameter with the composition mixture has been discussed in terms of molecular interactions.

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Studies on molecular interactions in binary liquid mixtures by viscosity and ultrasonic velocity measurements at 303.15 K

Cited by 113 publications

References 15 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, Excess Molar Volumes, Ultrasonic Speeds, and Isentropic Compressibilities of Hexan-1-ol with 1,2-Dichloroethane, 1,2-Dibromoethane, and 1,1,2,2-Tetrachloroethene at (293.15 and 298.15) K

Theoretical Evaluation of Ultrasonic Velocities in Binary Liquid Mixtures of Anisaldehyde with Some Alcoxyethanols at Different Temperatures

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