Determination and Modeling of Activity Coefficients of Sodium Bromide in (Water +N,N dimethylformamide) Mixed Solvent System at 298.2 K
محل انتشار: بیست و یکمین کنفرانس شیمی فیزیک انجمن شیمی ایران
سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 304
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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.
کلیدواژه ها:
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