Collection of Czechoslovak Chemical Communications - digital archive 

Abstract

The paper deals with the diffusion dialysis of sulfuric acid into water in a batch cell with a Neosepta-AFN anionselective membrane. The transport of sulfuric acid through the membrane has been quantified with respect to the dissociation of the acid by the dialysis coefficients for HSO₄^- and SO₄^2- ions. These coefficients have been determined by numerical integration of the basic differential equation describing the time dependence of sulfuric acid concentration in the dialysis cell with subsequent optimization of dialysis coefficients. Moreover, the membrane permeability coefficients for HSO₄^- and SO₄^2- ions and nondissociated sulfuric acid have been determined by the modified method of the Wilson diagram using the data about mass transfer in liquid for the given geometrical arrangement of cell.