| 초록 |
Excess molar properties QE (enthalpy, volume, and refractive index) at the temperature of 298.15 K and atmospheric pressure for the ternary mixture {1,2-dichloropropane + methanol + ethanol} and its constituent binary mixtures have been determined over the whole composition range. The experimental values of excess molar properties QE were determined using an isothermal microcalorimeter with flow-mixing cell, a digital vibrating-tube densimeter and refractometer, respectively. The experimental binary QE data were fitted to Redlich-Kister equation, and Cibulka and Morris equations were employed to correlate the ternary QE data. Several empirical equations (Tsao-Smith, Kohler and Radojkovič etc.) for predicting ternary excess enthalpies from constituent binary mixing data have been also examined and compared. The experimental results have been qualitatively discussed in terms of molecular interactions. |
