Abstract

MARQUES, A.; FERRA, M.I.A.  and  BANDEIRA, M.H.. Activity coefficients of potassium chloride in aqueous solutions of potassium chloride and potassium phthalate. Port. Electrochim. Acta [online]. 2006, vol.24, n.2, pp.295-303. ISSN 0872-1904.

Mean activity coefficients of potassium chloride were determined in aqueous solutions of potassium chloride and potassium phthalate, in the temperature range 10-50 ºC and ionic strength range 0.05-4 mol kg^-1, from potentiometric measurements on a galvanic cell without liquid junction. By processing the results using the Pitzer model, interaction parameters for potassium phthalate were calculated as well as their temperature dependence.

Keywords : activity coefficients; potassium phthalate; Pitzer equations.

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