Thermodynamic investigation of the ternary system: KCl+ Galactose+ H2O by Potentiometric Method

Study of aqueous solutions is one of the important subject about metabolic processes of organisms and research about their solvation is considered in thermodynamics of biochemistry. Activity coefficient, for KCl in Galactose + water mixed solvent were determined at 298.15 K by electromotive force ( emf ) measurements. Electrochemical cells with a potassium ion selective electrode (K–ISE) versus a chloride ion selective electrode (Cl–ISE) as a reference electrode were used to determine the activity coefficients for KCl– monosaccharide (D-galactose) systems in water at 298.15 K. Pitzer ion-interaction model has been used for correlating the data. A comparison of the results with references shown that agreement is excellent. The Gibbs free energy of transfer from water to mix solvent for KCl were evaluated together with the model parameter

کلیدواژه ها:

Activity Coefficients ، Gibss free energy of transfer ، Solvation ، KCl and Galactose