کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
217217 | 1426313 | 2008 | 11 صفحه PDF | دانلود رایگان |
In this work densities, ρρ, ultrasonic speeds, u , and viscosities, ηη, have been measured over the whole composition range for the binary mixtures of dipropylene glycol dimethyl ether (DPGDME) with ethanol, 1-propanol, 1-pentanol, and 1-heptanol at 298.15 K along with the properties of the pure components. By using the experimental values of ρρ, u , and ηη, excess molar volume, VmE, deviations in viscosity, ΔηΔη, excess free energy of activation for viscous flow, ΔG∗EΔG∗E, excess molar isentropic compressibility, KS,mE, deviation of the speeds of sound, uDuD, from their ideal values uiduid in an ideal mixtures, apparent molar volume, and apparent molar compressibility, V¯φ,i0 and K¯φ,i0 of the components at infinite dilution have been calculated. Finally, the experimental viscosity data have been correlated by the methods of Grunberg–Nissan, Hind, Tamura–Kurata, Chaudhry, Auslaender, Heric, and with McAllister correlations.
Journal: The Journal of Chemical Thermodynamics - Volume 40, Issue 5, May 2008, Pages 818–828