Thermodynamic Analysis of Surface Formation of {1,4-Dioxane + 1-Alkanol} Mixtures

✍ Scribed by Encina Calvo; Mercedes Pintos; Alfredo Amigo; Ramón Bravo

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 144 KB
• Volume: 253
• Category: Article
• ISSN: 0021-9797
• DOI: 10.1006/jcis.2002.8505

✦ Synopsis

Surface tensions (sigma) for {1,4-dioxane + methanol, ethanol, or 1-propanol} at the temperature 298.15 K and normal atmospheric pressure have been determined as a function of mole fractions. The experimental results have been analyzed using the ideal and Langmuir models and in the light of the well-documented bulk properties of these systems, which reflect hydrogen bonding between the alcohol and 1,4-dioxane molecules. For {1,4-dioxane + ethanol} surface tensions were also measured at other temperatures between 288.15 and 308.15 K, and these data were used to calculate the surface entropy and enthalpy per unit area.