کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7842200 1506507 2018 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Density, viscosity, surface tension and spectroscopic studies for the liquid mixture of tetraethylene glycol + N,N-dimethylformamide at six temperatures
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Density, viscosity, surface tension and spectroscopic studies for the liquid mixture of tetraethylene glycol + N,N-dimethylformamide at six temperatures
چکیده انگلیسی
Density (ρ), viscosity (η) and surface tension (γ) are always significant physicochemical properties for liquid mixtures. In this work, the ρ, η and γ data for the liquid mixture of tetraethylene glycol (T4EG) + N,N-dimethylformamide (DMF) were systemically measured from 293.15 to 318.15 K with a step of 5 K and p = 0.1 MPa. From these physicochemical properties, viscosity deviation (∆η), excess molar volume (VmE), and surface tension deviation (∆γ) were calculated. Meanwhile, VmE, ∆η and ∆γ of activation functions were fitted with Redlich-Kister (R-K) equation to evaluate the coefficients and standard deviations. The η values of the liquid mixtures were fitted with Grunberg and Nissan equation and three-body McAllister expression. UV-vis and FTIR spectra were measured to discuss the intermolecular interaction of T4EG with DMF, which indicated that there was hydrogen bonds interaction between hydroxyl hydrogen atoms in T4EG and oxygen atoms in DMF.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 264, 15 August 2018, Pages 451-457
نویسندگان
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