Journal of Chemical Thermodynamics, Vol.42, No.2, 234-243, 2010
Volumetric, acoustic, and viscometric studies of molecular interactions in binary mixtures of diethylene glycol monomethyl ether with 1-alkanols at temperatures from (293.15 to 308.15) K
In this work, densities rho, speeds of sound u, and viscosities eta, have been measured over the whole composition range for the binary mixtures of diethylene glycol monomethyl ether (DEGMME), CH3(OCH2CH2)(2)OH with 1-hexanol, CH3(CH2)(5)OH, 1-octanol, CH3(CH2)(7)OH, and 1-decanol, CH3(CH2)(9)OH at T = (293.15, 298.15, 303.15, and 308.15) K along with the properties of the pure components. By using the experimental values of rho, u, and eta, excess molar volume, V-m(E), deviations in viscosity, Delta eta, isentropic compressibility kappa(S), deviations in isentropic compressibility Delta kappa(S), deviations of the speed of sound Delta u, have been calculated. The viscosity results have also been analysed in terms of some semi-empirical equations. (C) 2009 Elsevier Ltd. All rights reserved.