Volumetric and transport properties of aqueous sulphuric acid

Abstract

Molecular conductance λ_m, viscosity η and density ρ of sulphuric acid at different concentrations in dilute aqueous solution were measured at 293 K. The conductance data were used to calculate the value of the ionic association constant. The experimental values of viscosity and density were used to calculate the A and B coefficients of the Jone–Dole equation and the apparent molar volume Φ_v. The behaviour of these parameters suggests that the ion–solvent interactions in the dilute aqueous sulphuric acid and ion acts as ‘structure maker’. The results were utilized for the applicability of modified Jone–Dole and Staurding equations.

Keywords:

• Conductance
• Viscosity
• Binary system
• Jone–Dole equation
• Staurdinger equation