Studies on thermodynamics properties of binary mixtures of amyl acetate with propanol at T = 298.15 K to 318.15 K.

• Measured ρ , u , η and n D for amyl acetate + isomers of propanol mixtures. • The V m E values are predicted by PFP theory and Graph theoretical approach. • The Δ η and κ s E values are analyzed by Singh Model and Ab-initio approach. • Interpretation of ultrasonic speed data in terms of FLT and CFT theory. • Δ G ∗ E values were predicted by using Δ η values. The thermophysical properties of amyl acetate and isomers of propanol are critical for a variety of industrial, scientific, and safety–related applications. The density (ρ), viscosity (η), speed of sound (u), and refractive index (n D) of binary amyl acetate (1) + propanol (2) mixtures were measured at T = 298.15 K–318.15 K and pressure of 0.1 MPa. The excess molar volume (V m E), deviation in viscosity (Δ η), deviation in speed of sound (Δ u), excess isentropic compressibility (κ s E), and deviation in refractive index (Δ n D) were derived from measured data. The deviation parameters in binary mixtures are affected by H–bonding, interstitial accommodation, and dipole–dipole interactions. The V m E , Δ η and κ s E values were described with Graph theory, Prigogine-Flory-Patterson (PFP) theory, Singh model, and ab–initio approach. While the V m E and Δ η rise with increment in temperature whereas Δ u and Δ n D decrease with increase in temperature. [ABSTRACT FROM AUTHOR]

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