Determination and Modeling of Activity Coefficients of Sodium Bromide in (Water +N,N dimethylformamide) Mixed Solvent System at 298.2 K

سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 298

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شناسه ملی سند علمی:

ISPTC21_146

تاریخ نمایه سازی: 30 دی 1397

چکیده مقاله:

In many industrial and environmental processes, modeling the thermodynamic properties ofvarious electrolytes in water – organic solvent mixtures, is of particular interest. In this respect,the electromotive force (emf) method is a useful experimental technique for studying thethermodynamic properties of electrolyte solutions [1-3]. In this article, results from mean activitycoefficient measurements using the potentiometric method are reported for NaBr in various N,Ndimethylformamide+ water mixed solvent systems containing 0, 10, 20, and 30% mass fractionsof N,N- dimethylformamide over ionic strength ranging from 0.0100 to 2.0000 mol.kg−1. Pitzerion-interaction model was used to analyze the studied system. The obtained parameters wereapplied to calute the thermodynamic properties.

نویسندگان

Hajar Akbarinezhad

Department of Chemistry, Faculty of Science University of Guilan, P., O. Box: ۱۹۱۴۱, Rasht, Iran

Bahram Ghalami-Choobar

Department of Chemistry, Faculty of Science University of Guilan, P., O. Box: ۱۹۱۴۱, Rasht, Iran