Surface activity of sodium chloride in aqueous solutions of dimethylformamide

Physicochemical Processes at the Interfaces
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Abstract

The surface tensions of solutions of sodium chloride in water and aqueous solutions of dimethylformamide (DMF) were measured in the range of solute concentrations of up to 1 mol/kg at 298 and 303 K. It was found that the concentration dependence of the surface tension of the electrolyte solution has an extreme character regardless of the solvent nature. The dependences obtained are discussed from the standpoint of the effect of solute solvation processes on the adsorption, the composition of surface layers, and the surface activity of a solution.

Keywords

Surface Tension Molar Fraction Surface Activity Sodium Chloride Preferential Adsorption 

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© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  1. 1.Ivanovo State University of Chemical TechnologyIvanovoRussia

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