Thermodynamic properties of the ternary system potassium bromide plus lithium bromide plus water at 25 degrees C

Activity coefficients of potassium bromide in aqueous mixtures of potassium bromide and lithium bromide were determined by emf measurement at 25 degre esC and at six ionic strengths from 0.1 to 2.5 mol . kg(-1). The experiment al data were fitted using the Scatchard-Rush-Johnson and Fitter models. The osmotic coefficients. excess Gibbs: energies of mixing, and activity coeff icients of lithium bromide in aqueous mixtures were calculated using Pitzer mixing parameters obtained in this work.