Studies on molecular interactions through thermophysical properties and FTIR analysis of binary systems of a green solvent furfuryl alcohol with 2-alkoxyethanols

• Published in: Chemical Data Collections 2024-03, Vol.50, p.101115, Article 101115
• Main Authors: Sasikala, K.A., Rao, G.Srinivasa, Sairam, P.V.S., Silpa, M., Reddy, K.Rayapa
• Format: Article
• Language: English
• Subjects: Binary liquid systems; FTIR spectral analysis; Green solvent; Thermophysical properties; Ultrasonic method
• ISSN: 2405-8300; 2405-8300
• DOI: 10.1016/j.cdc.2024.101115

•The information about molecular interactions of liquid mixtures is important in engineering design process, pharmaceutical, petrochemical and other industries.•Therefore, molecular interaction studies through thermodynamic, partial molar properties and FTIR spectral analysis have been presented for three binary liquid mixtures.•A bio-derived solvent furfuryl alcohol has taken for the present study with 2-methoxyethanol, 2-ethoxyethanol and 2-butoxyethanol.•From the ultrasonic, thermodynamic and FTIR techniques, presence of inter-molecular interactions and H-bonding between furfuryl alcohol and 2-alkoxyethanols is reported. The present paper provides the physiochemical properties of binary systems of a bio-derived, eco-sustainable solvent furfuryl alcohol with 2-alkoxyethanols. Speed of ultrasound (U), density (ρ) of pure liquids and binaries of furfuryl alcohol with 2-methoxyethanol, 2-ethoxyethanol and 2-butoxyethanol have been measured at four temperatures from 303.15 K to 318.15 K (with interval as 5 K). From the measured experimental data, excess free length (LfE), excess volume per mole (VmE) and isentropic compressibility deviation (∆κs) have been calculated. For fitting the data of excess parameters, Redlich-Kister polynomial equation has been used and the corresponding standard deviation is computed. The variations in the parameters under investigation indicated molecular associations among the components of the mixture. Partial molar studies have approved these results. Further, FTIR spectral analysis has been undertaken to confirm the interactions of furfuryl alcohol and 2-alkoxyethanols. The FTIR analysis is well agreed with the thermodynamic findings. [Display omitted]