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Volumetric, acoustic, and optical properties of binary mixtures of diethyl ether with alkanol at T = 293.15 K to 303.15 K.

Authors :
Verma, Sweety
Kashyap, Pinki
Rani, Manju
Song, Hojun
Maken, Sanjeev
Source :
Journal of Molecular Liquids. Jan2024, Vol. 394, pN.PAG-N.PAG. 1p.
Publication Year :
2024

Abstract

[Display omitted] • The excess molar volume, ultrasonic speed and refractive index data of diethyl. • ether and alkanol system are reported. • The excess properties data are correlated with the Redlich-Kister polynomial. • The excess molar volume values analyzed by the FTB and PFP theory. • Deviation in ultrasonic and refractive index data is predicted by various. • correlations. Density (ρ), ultrasonic speed (u), and refractive index (n D) of binary liquid mixtures such as diethyl ether (DEE) (1) + alkanol (isomers of propanol and 1-butanol) (2) were experimentally measured at T = 293.15 K to 303.15 K and at 0.1 MPa pressure. By using these measurements excess molar volume (V m E), deviation in ultrasonic speed (Δ u), excess isentropic compressibility (κ s E), and deviation in refractive index (Δ n D) were computed and associated with the Redlich-Kister polynomial equation. It was found that deviation parameters are influenced by H–bonding, interstitial accommodation, and dipole–dipole molecular interactions between binary mixtures. The V m E values have been interpreted by the Prigogine–Flory–Patterson (PFP) theory and the Flory–Treszczanowicz–Benson (FTB) model. The FTB model and PFP theory anticipated the V m E curves and were able to depict the perfect shape and magnitude of V m E values. The numeric values of u and n D were computed by using several empirical correlations and mixing rules. This study discusses the comparative significance of these relationships with the measured values of u and n D. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
01677322
Volume :
394
Database :
Academic Search Index
Journal :
Journal of Molecular Liquids
Publication Type :
Academic Journal
Accession number :
174708205
Full Text :
https://doi.org/10.1016/j.molliq.2023.123796