Abstract
The intermolecular interaction and the structural fitting has been studied in the case of solutions of 4-aminobenzoic and 4-hydroxybenzoic acids in the ethanol-water mixture (70: 30 by volume) by analysis of the density, viscosity, and refractice index data at 303.15 K. Viscometry data has been fitted to the Jones-Dole equation, and the respective parameters have been determined. It has been demonstrated that the introduction of benzoic acids leads to structuring of the aqueous ethanol mixed solvent. Concentration dependences of viscosity and density have revealed the strong interactions between molecules of the solvent and the solute, enhancing with increasing concentration of the acid.
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