Title Potentiometry determination of activity coefficients and Gibbs energy transfer of ammonium nitrate in the ternary system: NH4NO3+ Fructose+ H2O Type of Research Presentation Keywords Activity Coefficients, Gibss free energy of transfer, Solvation, NH4 NO3 and Fructose. Abstract Activity coefficients and Gibbs free energy of transfer of the ternary NH4NO3+Fructose+ water at 298.15 K by electromotive force measurements were communicated and discussed. Electrochemical cells with a ammonium ion selective electrode (NH4–ISE) versus a nitrate ion selective electrode (NO3–ISE) as a reference electrode were used to determine the activity coefficients for NH4 NO3 – monosaccharide (Frucrose) systems in water at 298.15 K. Pitzer ion-interaction model has been used for correlating the data. A comparison of the results with literatures yields consistent results Researchers Rahman Salamat Ahangari (First Researcher)