potassium chloride and potassium phthalate
A. Marques,* M.I.A. Ferra, M.H. Bandeira
Dep. Química, Univ. Beira-Interior, 6201-001 Covilhã, Portugal
Abstract
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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*Corresponding author. E-mail address: ammmba@ubi.pt
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