Prediction of Thermophysical Properties of Binary Liquid Mixtures of Propiophenone and Ethyl Acetate at 303.15, 308.15, and 313.15 K

Density, viscosity, ultrasonic velocity and refractive index values of the binary liquid mixtures of propiophenone (PP) and ethyl acetate (EA) have been measured for the whole range of compositions at temperatures 303.15, 308.15, and 313.15 K. The variation of excess properties (V-E, Delta eta, Delta u, Delta n, Delta Z, Delta beta(S,)Delta L-f, andG*(E)) with composition and temperature is discussed in the paper in terms of molecular interaction of components in the mixture. Redlich-Kister type polynomial has been used to fit the excess properties. A standard RSM design based on central composite design (CCD) has been applied to study the thermo physical properties of binary liquid mixtures as function of mole fraction and temperature. The molecular interaction between PP and EA has been analyzed by the excess properties along with the acoustic properties, and the developed equation can be used to calculate the thermophysical properties at various temperatures and compositions.