کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
201519 460554 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Density and viscosity study of pyridinium based ionic liquids as potential absorbents for natural refrigerants: Experimental and modelling
ترجمه فارسی عنوان
بررسی تراکم و ویسکوزیته مایعات یونی مبتنی بر پرییدینیم به عنوان جذب کننده های احتمالی برای مبرد های طبیعی: تجربی و مدل سازی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی

In this work, density and viscosity of two pyridinium based ionic liquids; 1-ethylpyridinium bis(trifluoromethylsulfonyl)imide, [C2py][NTf2], and 1-ethylpyridinium triflate, [C2py][OTf] as well as [C2py][OTf] + H2O mixtures have been studied from experimental and theoretical point of view. Density and viscosity were measured, at several temperatures and atmospheric pressure. A linear equation and Vogel–Fulcher–Tammann equation correlated successfully density and viscosity behaviour. Coefficient of thermal expansion of pure ILs and their mixtures with water together with the excess molar volume and viscosity deviation of mixtures were also calculated. Excess molar volumes and viscosity deviations were described using a Redlich–Kister equation. Regarding to theoretical approach, PC-SAFT was used to model volumetric behaviour whereas Hard Sphere theory was used to study viscosity. The obtained results for pure ILs are satisfactory for both models, but for [C2py][OTf] + H2O mixtures the deviations are higher.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fluid Phase Equilibria - Volume 405, 15 November 2015, Pages 37–45
نویسندگان
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