کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5410691 | 1506559 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigations of the interactions in aqueous poly (vinyl pyrrolidone)Â +Â di-sodium hydrogen citrate solutions using vapor-liquid equilibria studies at different temperatures
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Vapor-liquid equilibrium data of binary aqueous di-sodium hydrogen citrate (Na2HCit) aqueous poly (vinyl pyrrolidone), and ternary aqueous (Na2HCit)Â +Â poly (vinyl pyrrolidone) solutions were measured using the isopiestic method at TÂ =Â (298.15, 308.15, 318.15) K. The obtained vapor-liquid equilibria data for binary aqueous di-sodium citrate system were successfully fitted with the Pitzer equation. From these data, the corresponding activity coefficients have been calculated. Using the general Pitzer formalism an equation was employed to correlate the obtained osmotic coefficient values for the ternary system. The thermodynamic behavior of aqueous (Na2HCit)Â +Â poly (vinyl pyrrolidone) solutions was discussed on basis of water, polymer and salt interactions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 211, November 2015, Pages 767-775
Journal: Journal of Molecular Liquids - Volume 211, November 2015, Pages 767-775
نویسندگان
Mohammed Taghi Zafarani-Moattar, Nafiseh Karimi, Behnaz Asadzadeh,