ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Ultrasonic, surface tension and thermoacoustical studies of alkanone + amine mixtures

Ranjan Dey and Aditi Prabhune

Thermophysical Properties Lab, Department of Chemistry, BITS-Pilani K. K. Birla Goa Campus, Zuarinagar, India

E-mail: ranjandey@goa.bits-pilani.ac.in

Received: 12 April 2024  Accepted: 25 September 2024

Abstract:

Thermophysical properties have wide applications in various fields like chemical industries, mass and heat transfer processes, design and engineering calculations of industrial plants and their evaluation in liquid mixtures gives us a better understanding of intermolecular interactions taking place therein. The binary liquid mixtures under the current study comprise a range of alkanones viz. 2-Propanone, 2-Butanone, 2-Pentanone and 2-Heptanone with aromatic amines like Aniline, N-methylaniline and Pyridine at temperatures 293.15 K to 303.15 K which have multifarious industrial applications. In the present investigation, ultrasonic velocity\((u)\) studies have been carried out using five approaches at three temperatures. Furthermore, surface tension\((\sigma )\), acoustical impedance\((z)\) and thermoacoustical parameters along with non-linearity parameters (B/A) have been evaluated. The variations in molecular interactions are well understood through interaction parameters\((\chi )\). The obtained results indicate that the order of interactions is Pyridine < N-methylaniline  < Aniline for a specific alkanone and 2-Propanone > 2-Butanone > 2-Pentanone > 2-Heptanone for a given amine at all three temperatures. The study of thermophysical properties have been elaborated to understand the order of the interactions between various amines and alkanones.

Keywords: Thermoacoustical; Surface tension; Ultrasonic velocity; Non-linearity; Binary

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-024-03716-8

Chemical Papers 78 (16) 8863–8876 (2024)