Effect of alkanol chain length on excess thermodynamic properties of p-cresol with 1-alkanol (C3–C8) at 298.15, 303.15, 308.15 and 313.15 K

Abstract

The objective of the present study is to accredit the molecular interactions between p-cresol and 1-alkanols at different temperatures, based on the thermophysical properties such as densities (ρ) and speed of sound (u) data. To improve our understanding of the molecular interactions between 1-alkanols such as 1-propanol, 1-butanol, 1-pentanol, 1-hexanol, 1-heptanol and 1-octanol with p-cresol have been measured as a function of composition at different temperatures from (298.15 to 313.15) K and at atmospheric pressure. From these experimental data, the excess volumes (VE), isentropic compressibilities (ks) and excess isentropic compressibilities (ksE) have been calculated for 1-alkanols with p-cresol. The measured excess properties were correlated with the Redlich–Kister polynomial equation. The calculated properties were discussed in terms of molecular interactions between component molecules.