A.Z. Francesconi

New applications of the ERAS-model : excess volumes of binary liquid mixtures of 1-alkanols with acetonitrile

Abstract The applicability of the ERAS-Model to strong polar systems such as 1-alkanol+acetonitrile was analysed. For this purpose, densities for binary mixtures of 1-heptanol and 1-octanol with acetonitrile have been measured at 293.15, 298.15, and 313.15 K using a vibrating-tube densimeter. Excess molar volumes (VmE) were determined. Both systems exhibit positive VmE values over the entire composition range in the temperature range studied. ERAS-Model calculations allowing for self-association for both components alkanol and acetonitrile were performed. The agreement between theoretical and experimental results is satisfactory only for the composition central range. A simplified version of the model, without the chemical contribution, gives better results.

Application of the Prigogine-Flory-Patterson theory to excess molar volume of binary mixtures of acetonitrile with 1-alkanols

Abstract Excess molar volumes of binary mixtures of (acetonitrile + 1-heptanol or 1-octanol) as a function of composition under atmospheric pressure and at 293.15, 298.15 and 313.15 K have been used to test the applicability of the Prigogine-Flory-Patterson theory. Both systems exhibit positive VmE values over the whole mole fraction range in the temperature range studied. The agreement between theoretical and experimental results is satisfactory for the studied systems.

Excess Gibbs free energies of (n-hexane + propan-1-ol) at 338.15 and 348.15 K and of (n-hexane + propan-2-ol) at 323.15, 338.15, and 348.15 K

The (vapor + liquid) phase equilibria of (n-hexane + propan-1-ol) at 338.15 and 348.15 K and of (n-hexane + propan-2-ol) at 323.15, 338.15, and 348.15 K have been measured using a Fischer recirculating still. Excess molar Gibbs energies GmE were calculated. Thermodynamic consistency was tested by two methods and the results were correlated by use of the Wilson equation. Both mixtures exhibit positive GmE values in the temperature range studied.

Volumetric Properties of Binary Mixtures of Acetonitrile and Chloroalkanes at 25°C and Atmospheric Pressure

AbstractExcess molar volumes

Vapor—liquid phase equilibrium measurements for the n-hexane—1-butanol system at 323.15,338.15 and 348.15 K

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Gas−Liquid Solubility of Hydrogen in n-Alcohols (1 ⩽ n ⩽ 4) at Pressures from 3.6 MPa to 10 MPa and Temperatures from 298.15 K to 525.15 K

for binary mixtures of acetonitrile + dichloromethane, acetonitrile + trichloromethane, and acetonitrile + tetracloromethane at 25°C have been used to calculate partial molar volumes

Thermodynamics of binary liquid mixtures: application of the Prigogine–Flory–Patterson theory to excess molar volumes of acetonitrile+1-alkanol systems

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