Experimental Study of the Excess Molar Enthalpy 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)+Electrolytes at 298.15 K and Atmospheric Pressure |
| |
Authors: | Ricardo F. Checoni Artur Z. Francesconi |
| |
Affiliation: | (1) School of Chemical Engineering, State University of Campinas, P.O. Box 6066, 13083-970 Campinas, SP, Brazil |
| |
Abstract: | Excess molar enthalpies (H m E) 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⋅dm−3) at 298.15 K and atmospheric pressure have been determined as a function of composition using a modified 1455 Parr mixture calorimeter. The H m E values are negative for all mixtures over the whole composition range. The influence of the electrolyte on the hydrophobic and hydrophilic effects as well as on the behavior of H m E is discussed. |
| |
Keywords: | Water Alkanediols Electrolytes Excess molar enthalpy |
本文献已被 SpringerLink 等数据库收录! |
|