کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
216041 | 1426289 | 2010 | 9 صفحه PDF | دانلود رایگان |
Excess molar volumes (VmE) of ternary mixtures containing {water + (1,2-propanediol, or 1,3-propanediol, or 1,2-butanediol, or 1,3-butanediol, or 1,4-butanediol, or 2,3-butanediol) + (sodium bromide, or ammonium bromide, or tetraethyl ammonium bromide, or 1-n-butyl-3-methylimidazolium bromide)} at 0.1 mol per kilogram of (water + alkanediol), as well as the excess molar volume of these aqueous mixtures salt-free, both at a temperature of 298.15 K and atmospheric pressure, have been determined as a function of composition using a glass pycnometer (5.0 cm3) with thermometer-in-glass. The VmE are negative for all mixtures over the whole composition range. The influences of the electrolyte and of the hydrophobic and hydrophilic effects on the volumetric behavior are discussed.
Journal: The Journal of Chemical Thermodynamics - Volume 42, Issue 5, May 2010, Pages 612–620