کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5408964 1506533 2017 40 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High temperatures and high pressures density measurements of 1-ethyl-3-methylimidazolium methanesulfonate and Tait-type equation of state
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
High temperatures and high pressures density measurements of 1-ethyl-3-methylimidazolium methanesulfonate and Tait-type equation of state
چکیده انگلیسی
Density of ionic liquid (IL) 1-ethyl-3-methylimidazolium methanesulfonate (short name [EMIM][MeSO3]) at high temperatures and high pressures were measured. The measurements have been made at pressures up to 60 MPa for 10 isotherms between 273 and 413 K using an Anton Paar DMA HPM vibration tube densimeter (VTD). The measuring system was calibrated using various standard fluids (double- distilled water, aqueous NaCl solutions, methanol, ethanol, toluene and acetone) with well-known density data. The combined expanded uncertainty of the density (ρ), pressure (P), and temperature (T) measurements at the 95% confidence level with a coverage factor of k = 2 is estimated to be 0.01 to 0.08% depending on temperature and pressure ranges, 0.1%, and 15 mK, respectively. We have critically assessed all of the reported density data at atmospheric pressure together with the present results for their internal consistence to carefully select primary data to fit reference correlation, ρ0(T). This correlation ρ0(T) together with the present high-pressure density measurements (ρ, P, T) were used to develop two-parametric (c and B) and theoretically based Tait- type equation of state. The theoretical interpretation and physical meaning of the Tait's parameters (c and B) and their temperature behavior was discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 238, July 2017, Pages 347-358
نویسندگان
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