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Hawrylak, Brent; Gracie, Kim; Palepu, R.

doi:10.1023/a:1022636511542

Cited by 177 publications

(66 citation statements)

References 21 publications

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“…Furthermore, the extent of interaction between the component molecules in a mixture is well reflected in the parameters like apparent molar volume, apparent molar compressibility, partial molar volume and partial molar compressibility [43,44]. The apparent molar volumes V φ ,2 of 1-butanol and 2-butanol in cyclohexane were calculated by using the equation [43] …”

Section: Resultsmentioning

confidence: 99%

“…The partial molar volumesV 0 φ ,2 of 1-butanol and 2-butanol in cyclohexane at infinite dilution were obtained by the method described earlier [43,44]. The deviations inV 0 φ ,2 at infinite dilution ∆V 2 , were calculated by using the equation [43] …”

Section: Resultsmentioning

confidence: 99%

“…The apparent molar compressibilities K φ ,2 of 1-butanol/2-butanol in cyclohexane were calculated using the relation [43,44] …”

Section: Resultsmentioning

confidence: 99%

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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: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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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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“…Closer examination of the physical nature of compressibilities suggested that it should be more appropriate to use volume fraction basis for compressibilities of pure components of solution to estimate ideal behaviour of this property, 22 while it is meaningful and physically significant 23,24 to calculate ∆R m , and also V E , by considering ideal behaviour based on the molar fraction basis of pure component properties. Table 2 Experimental densities (ρ), viscosities (η), speeds of sound (u), and refractive indices (n D ) in binary liquid mixtures at 303.15 K The values of R m calculated by using Eq.…”

Section: Resultsmentioning

confidence: 99%

Density, Viscosity, Refractive Index, and Speed of Sound in Binary Mixtures of Pyridine and 1‐Alkanols (C₆, C₇, C₈, C₁₀) at 303.15 K

et al. 2008

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The densities (ρ), viscosities (η), refractive indices (n D ), and speeds of sound (u), of binary mixtures of pyridine with 1-hexanol, 1-heptanol, 1-octanol and 1-decanol, including those of pure liquids, were measured over the entire composition range at 303.15 K and atmospheric pressure. K φ ), of alkanols in pyridine and their corresponding deviations (∆V and ∆K) were calculated. The variations of these parameters with composition of the mixtures suggest that the strength of interactions in these mixtures follow the order: 1-hexanol＞1-heptanol＞1-octanol＞1-decanol. All the excess and deviation functions were fitted to Redlich-Kister polynomial equation to determine the fitting coefficients and the standard deviations.

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“…The negative excess partial molar volumes may be indicative of solute-solvent [60,61] interactions between unlike molecules, whereas positive values indicate the presence of strong self-association between like molecules. The excess …”

Section: Excess Intermolecular Free Length (Lfmentioning

confidence: 99%

Study on Molecular Interactions Using Thermodynamic Excess Properties of Binary Mixture Containing Propiophenone with 1-Propanol, 1-Butanol and 1-Pentanol at Temperatures 303.15, 308.15, 313.15 and 318.15 K

Devi¹,

Rao²,

Sirija³

et al. 2017

Asian J. Chem.

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The current study works out on densities 'ρ', ultrasonic speeds of sound 'u' of binary mixtures of propiophenone with n-alcohols e.g., 1-propanol, 1-butanol and 1-pentanol measured over the entire composition range at 303.15 to 318.15 K and at atmospheric pressure 0.1 MPa. The worked out experimental data has been used to calculate various thermodynamic excess parameters like excess molar volume (V E ), excess ultrasonic velocity (U E ), excess acoustic impedance (Z E ), excess intermolecular free-length (Lf E ), deviation in isentropic compressibility (∆Ks), deviation in acoustic impedance (∆Z) and the computed results were fitted with the Redlich Kister equation to estimate the binary coefficients and standard deviation between experimental and calculated data. Partial molar volume of the binary mixtures was calculated to understand more of the intermolecular reactions in the above binary mixtures.

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Untitled

Cited by 177 publications

References 21 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

Density, Viscosity, Refractive Index, and Speed of Sound in Binary Mixtures of Pyridine and 1‐Alkanols (C₆, C₇, C₈, C₁₀) at 303.15 K

Study on Molecular Interactions Using Thermodynamic Excess Properties of Binary Mixture Containing Propiophenone with 1-Propanol, 1-Butanol and 1-Pentanol at Temperatures 303.15, 308.15, 313.15 and 318.15 K

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Untitled

Cited by 177 publications

References 21 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

Density, Viscosity, Refractive Index, and Speed of Sound in Binary Mixtures of Pyridine and 1‐Alkanols (C6, C7, C8, C10) at 303.15 K

Study on Molecular Interactions Using Thermodynamic Excess Properties of Binary Mixture Containing Propiophenone with 1-Propanol, 1-Butanol and 1-Pentanol at Temperatures 303.15, 308.15, 313.15 and 318.15 K

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Density, Viscosity, Refractive Index, and Speed of Sound in Binary Mixtures of Pyridine and 1‐Alkanols (C₆, C₇, C₈, C₁₀) at 303.15 K