Effect of ketonic group on thermodynamic properties of binary mixtures containing aromatic alcohol at different temperatures

Densities (ρ) and speeds of sound (u) data for the binary mixtures of benzyl alcohol (BA) with methyl ethyl ketone (MEK), diethyl ketone (DEK), methyl propyl ketone (MPK), and methyl isobutyl ketone (MIBK) have been investigated at four temperatures (T = 303.15, 308.15, 313.15 and 318.15 K) and pressure (P = 0.1 MPa) over the entire composition range. These data have been utilized to derive excess molar volume ( V m E ), excess isentropic compression ( K S E ) and excess speed of sound ( u E ) for all the systems. The experimentally determined values have been correlated by Redlich-Kister polynomial equation. Further, these results have been analysed by different theoretical treatment such as Prigogine–Flory–Patterson (PFP) theory, intermolecular free length theory and collision frequency theory. The different types of interaction between the component molecules could be addressed by the changes in positive and negative values of excess properties. The applications of present study can be used to build comprehensive theoretical models for designing various technological processes in chemical and biochemical industries.