measurement and modeling of mean ionic activity coefficient in aqueous solution containing nano3 and poly ethylene glycol

نویسندگان

siamak modarresi

mohammad reza dehghani

parinaz alimardani

sara kazemi sabzvar

farzaneh feyzi

چکیده

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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Measurement and Modeling of Mean Ionic Activity Coefficient in Aqueous Solution Containing NaNO3 and Poly Ethylene Glycol

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 measu...

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عنوان ژورنال:
iranian journal of chemistry and chemical engineering (ijcce)

ناشر: iranian institute of research and development in chemical industries (irdci)-acecr

ISSN 1021-9986

دوره 32

شماره 2 2013

میزبانی شده توسط پلتفرم ابری doprax.com

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