Title of article
Measurement and Modeling of Mean Ionic Activity Coefficient in Aqueous Solution Containing NaNO3 and Poly Ethylene Glycol
Author/Authors
Modarresi، Siamak نويسنده Chemical Engineering Department, Iran University of Science and Technology, Tehran, I.R. IRAN , , Dehghani Firuzabadi، Mohammad Reza نويسنده , , Alimardani، Parinaz نويسنده Chemical Engineering Department, Iran University of Science and Technology, Tehran, I.R. IRAN , , Kazemi Sabzvar، Sara نويسنده Chemical Engineering Department, Iran University of Science and Technology, Tehran, I.R. IRAN , , Feyzi، Farzaneh نويسنده Chemical Engineering Department, Iran University of Science and Technology, Tehran, I.R. IRAN ,
Issue Information
فصلنامه با شماره پیاپی 66 سال 2013
Pages
9
From page
31
To page
39
Abstract
Potentiometric investigation on {H2O+NaNO3+PEG1500} mixtures were made at T=308.15K, using electrochemical cells with two ion-selective electrodes, (Na+ glass)as the cation ion-selective electrode against (NO3- solvent-polymer PVC) as the anion ion-selective electrode. The mean ionic activity coefficients of NaNO3 were measured at different concentrations of NaNO3 and PEG. Maximum concentration of electrolyte and PEG were 1 mol/kg and 0.12 mol/kg, respectively. The experimental data was modeled by utilizing the modified Pitzer equation and the activity coefficient ratio of PEG was evaluated by using Maxwell’s cross differential relation.
Journal title
Iranian Journal of Chemistry and Chemical Engineering (IJCCE)
Serial Year
2013
Journal title
Iranian Journal of Chemistry and Chemical Engineering (IJCCE)
Record number
1085937
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