Santiago Martı́nez

Densities and viscosities of binary mixtures of butanone with butanol isomers at several temperatures

Densities and viscosities of 1-chlorobutane + 1-butanol, + 2-methyl-1-propanol, + 2-butanol, or + 2-methyl-2-propanol were measured at several temperatures between 288.15 K and 318.15 K. At each temperature, the experimental viscosity data were correlated by means of the McAllister biparametric equation. By using our previous thermodynamic measurements (VLE, HE), we have tested the Wei and Rowley nonparametric model at T = 298.15 K, obtaining average absolute deviations that are comparable to those calculated for the biparametric model.

Vapour pressures at several temperatures between 288.15 K and 323.15 K of di-n-propylether with 1-hexanol or 1-octanol. Application of the ERAS model

Abstract Vapour pressures of di- n -propylether+1-hexanol or +1-octanol were measured at several temperatures between 288.15 K and 323.15 K by a static method. Reduction of the vapour pressures to obtain activity coefficients and excess molar Gibbs free energies was carried out by Barkers method. G E , H E , and V E , at 298.15 K, are compared with predictions of the ERAS-model observing that the model reproduces acceptably the experimental behaviour.

Isothermal vapour–liquid equilibrium at several temperatures and excess functions at 298.15 K of butanone with 2-methyl-1-propanol or 2-methyl-2-propanol

Abstract Vapour pressures of butanone+2-methyl-1-propanol or +2-methyl-2-propanol at several temperatures between 278.15 and 323.15 K were measured by a static method. Excess molar enthalpies and volumes for 2-methyl-1-propanol were also measured at 298.15 K. Reduction of the vapour pressures to obtain activity coefficients and excess molar Gibbs free energies was carried out by fitting the vapour pressure data to the Redlich–Kister correlation according to Barkers method. It is made as a comparison of the thermodynamic properties of mixtures of alcohols in butanone and n-hexane, and the results are qualitatively discussed.