Densities, sound velocities, refractive indices, and relevant excess properties for the binary solutions of 3-amino-1-propanol in aqueous and non-aqueous media at different temperatures between T = 298.15 K and 323.15 K

Abstract

Density ρ, sound velocity, u, and refractive index, nD, were measured for the binary mixtures of Water (W) + 3-amino-1-propanol (AP) and Acetonitrile (ACN) + AP over the whole range of composition at different temperatures ranging between T = 298.15 and 323.15 K. From measured ρ, u and nD, some derived properties such as molar volume, Vm, partial molar volume, V¯i and its value at infinite dilution, V¯i∞, thermal expansivity, α, isentropic compressibility, κs, as well as molar refractions, Rm, followed by the relevant deviations/excess properties were computed. Data of ρ, α, u, κs, and nD were correlated to the concentration-dependent polynomials within satisfactory limits, whereas the calculated deviations/excess properties were fitted well to the Redlich-Kister equation. The temperature dependency of experimental ρ also finds satisfactory correlation to the Jouyban-Acree model.Data analysis reveals that, for both the systems cross H-bonding interaction occurs, and it is stronger between W and AP compared to that between ACN and AP. Effects due to the hydrophobicity of AP, as well as that due to interstitial incorporation of the W or ACN into the networks of AP also played significant roles. Moreover, in W + AP solutions the contribution in the overall volume reduction is remarkably greater due to W, while for the solutions of ACN + AP it is greater due to the component AP.