کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
204398 460724 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on solid–liquid phase equilibria in ionic liquid: 2. The solubility of alkali bromide in ionic liquid 1-ethyl-3-methylimidazolium ethyl sulfate
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Study on solid–liquid phase equilibria in ionic liquid: 2. The solubility of alkali bromide in ionic liquid 1-ethyl-3-methylimidazolium ethyl sulfate
چکیده انگلیسی

This paper reports the solubility of alkali bromide MBr (M is Na or K) in ionic liquid (IL) EMISE (1-ethyl-3-methylimidazolium ethyl sulfate), measured in the temperature range of 293.15–343.15 K. The relationship between solubility, m, and temperature, T, may be expressed in an empiric formula: ln(m/m0) = A1 + A2T0/T, where T0 is 1 K, m0 is 1 mol kg−1. The observed sequence of solubility is NaBr > KBr. The fact implies that the less the radius of alkali ion, the greater is its solubility because small ion is easy to get into the interstices of IL EMISE. In addition, the standard transfer thermodynamic functions of MBr from water to IL EMISE were calculated in terms of solubility data of MBr in water. Using Born model, the dielectric constant, D = 8.7, was estimated and was close to the value of typical IL measured by Wakai.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fluid Phase Equilibria - Volume 254, Issues 1–2, 15 June 2007, Pages 163–166
نویسندگان
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