کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
216733 1426285 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Volumetric and viscometric studies of glucose in binary aqueous solutions of urea at different temperatures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Volumetric and viscometric studies of glucose in binary aqueous solutions of urea at different temperatures
چکیده انگلیسی

Densities and viscosities of glucose in (1.0, 2.5, and 5.0) mass% aqueous urea solutions have been measured at T = (298.15, 303.15, 308.15, and 313.15) K, respectively. Apparent molar volumes, limiting partial molar volume, and relative viscosity have been obtained from the density and viscosity results. Limiting partial molar expansibilities have also been calculated from the temperature dependence of limiting partial molar volumes. The viscosity data have been analyzed by using the modified Jones–Dole equation. The results are used to establish the nature of solute–solute and solute–solvent interactions. Transition state treatment of the relative viscosity was also used for the calculation of activation parameters of viscous flow. Pour findings show that the solute acts as a water structure former and provides strong solute–solvent interaction.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Chemical Thermodynamics - Volume 42, Issue 9, September 2010, Pages 1131–1135
نویسندگان
, ,