این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Physical Chemistry Research، جلد ۹، شماره ۳، صفحات ۳۴۵-۳۶۰
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Phase Equilibria of PEG/Sulfate Salt Aqueous Two-Phase Systems: Effects of pH and Molecular Weight of Polymer
چکیده انگلیسی مقاله In this study, the liquid-liquid equilibrium (LLE) in the aqueous two-phase system (ATPS) formed by polyethylene glycol (PEG1500 and PEG6000) and magnesium sulfate is investigated. The experimental measurements were performed at temperature of 298.15 K and pH values of 3.60, 5.00, 6.67. Densities and refractive indices of the mixtures were first measured to obtain the compositions from the plotted tie lines. The effects of pH and molecular mass of polymers on the binodal curve, tie lines length (TLL) and slope of tie line (STL) have been examined. It was found the pH values and molecular weight rise the heterogeneous region for each system. The binodal curve was fitted to the Merchuk and the Pirdashti equations. The Othmer-Tobias as well as the Bancroft equations were subsequently selected to correlate the compositions of the tie lines at equilibrium where the fitted parameters are derived. In addition, the Guan’s equation was utilized to correlate the experimental binodal curves. Finally, the effectively excluded volume (EEV) was determined and the values were found to increase with pH.
کلیدواژه‌های انگلیسی مقاله ATPS,phase diagram,Tie Line,polyethylene glycol,magnesium sulfate
نویسندگان مقاله Mohsen Pirdashti |
Chemical Engineering Department, Faculty of Engineering, Shomal University, P. O. Box: 731, Amol, Mazandaran, Iran

Zahra Heidari |
Chemical Engineering Department, Faculty of Engineering, Shomal University, PO Box 731, Amol, Mazandaran, Iran

Seyyed Mohammad Arzideh |
Faculty of Chemical Engineering, Babol University of Technology, PO Box, 484, Babol, Iran

Ianatul Khoiroh |
Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, Semenyih, Selangor Darul Ehsan, Malaysia

Shakiba Shabani |
Chemical Engineering Department, Faculty of Engineering, Shomal University, PO Box 731, Amol, Mazandaran, Iran

Nahid Abbasi Fashami |
Chemical Engineering Department, Faculty of Engineering, Shomal University, PO Box 731, Amol, Mazandaran, Iran

نشانی اینترنتی https://www.physchemres.org/article_128428_439923897f9ba317b7b8d69b617f7933.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات