Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9625901 | Fluid Phase Equilibria | 2005 | 7 Pages |
Abstract
Limiting activity coefficients (γ1â) of lower (C1-C5) 1-alkanols in water were measured at several temperatures covering the range from the freezing to the normal boiling point of water. Five experimental techniques, namely headspace analysis, inert gas stripping, comparative tensimetry, Rayleigh distillation, and the method of circulation still, were employed for the purpose. To establish reliable temperature dependence of γ1â for each of the systems, careful goal-directed measurements were carried out applying the methods alternatively in accordance with the applicability conditions. The method-to-method accord of the results, their thermodynamic consistency with calorimetric data on related thermal properties and their accuracy were verified using two procedures.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Pavel Vrbka, Dana Fenclová, Václav LaÅ¡tovka, VladimÃr Dohnal,