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Measurement and Modeling of Mean Ionic Activity Coefficient in Aqueous Solution Containing NaNO3 and Poly Ethylene Glycol
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نویسنده
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Modarresi Siamak ,Dehghani Mohammad Reza ,Alimardani Parinaz ,Kazemi Sabzvar Sara ,Feyzi Farzaneh
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منبع
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iranian journal of chemistry and chemical engineering - 2013 - دوره : 32 - شماره : 2 - صفحه:31 -39
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چکیده
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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.
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کلیدواژه
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Activity coefficient ,Polymer ,Electrolyte solution ,Ion-selective electrode
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آدرس
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iran university of science and technology, Chemical Engineering Department, Iran University of Science and Technology, Tehran, I R IRAN, ایران, iran university of science and technology, Chemical Engineering Department, Iran University of Science and Technology, Tehran, I R IRAN, ایران, iran university of science and technology, Chemical Engineering Department, Iran University of Science and Technology, Tehran, I R IRAN, ایران, iran university of science and technology, Chemical Engineering Department, Iran University of Science and Technology, Tehran, I R IRAN, ایران, iran university of science and technology, Chemical Engineering Department, Iran University of Science and Technology, Tehran, I R IRAN, ایران
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Authors
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