Thermodynamic properties of binary liquid mixtures containing aromatic alcohol and aliphatic amines at different temperatures

• Published in: Journal of molecular liquids Vol. 285; pp. 279 - 287
• Main Authors: Shakila, A., Ravikumar, S., Pandiyan, V., Gaba, Rekha
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.07.2019
• Subjects: Amines; Benzyl alcohol; Binary mixture; Density; FTIR studies; Speed of sound; FTIR studies; Binary mixture; Amines; Benzyl alcohol; Speed of sound; Density
• ISSN: 0167-7322; 1873-3166
• DOI: 10.1016/j.molliq.2019.04.064

As an extension of our previous work, thermodynamic and acoustic properties of binary mixtures of benzyl alcohol with propyl amine, di-propyl amine, diiso-propyl amine and tri-propyl amine have been investigated by measuring density and speed of sound data 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 calculate excess parameters like excess molar volume (VmE), excess isentropic compression (KSE ) and excess speed of sound (uE) for all the systems.All the excess parameters have been correlated by Redlich-Kister equation. Further, to analyse the experimental results theoretical treatment of the data has also been done by using Prigogine–Flory–Patterson (PFP) theory, intermolecular free length theory and collision frequency theory. Results were also supported by FTIR studies of equimolar binary liquid mixtures. •Determination of excess properties of benzyl alcohol with different aliphatic amines•Discussion on intermolecular interactions at different composition and temperature•FTIR studies for equimolar mixtures•Application of theoretical models