Surface Tensions of Dilute Solutions of Cycloheptanol in Ethylene Glycol

Surface properties (surface entropy, surface enthalpy, and surface composition) of dilute solutions of cycloheptanol in ethylene glycol were obtained by using of surface tension measurements at various temperatures. Surface excess values and surface mole fractions were obtained from the Gibbs equati...

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Bibliographic Details
Published inJournal of chemical and engineering data Vol. 50; no. 3; pp. 1091 - 1094
Main Authors Azizian, Saeid, Bashavard, Nowrouz
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 01.05.2005
Subjects
Chemistry
Exact sciences and technology
General and physical chemistry
Solutions
Surface properties
Ethylene glycol
Excess parameter
Surface tension
Dilute solution
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Summary:Surface properties (surface entropy, surface enthalpy, and surface composition) of dilute solutions of cycloheptanol in ethylene glycol were obtained by using of surface tension measurements at various temperatures. Surface excess values and surface mole fractions were obtained from the Gibbs equation and the extended Langmuir model, respectively. The results show that cycloheptanol is surface-active in ethylene glycol. The lyophobicity of cycloheptanol decreases with increasing temperature.
Bibliography:istex:B8A0BAA495BF44979A6D7E3BD8B83CC6BCA0ECD6
ark:/67375/TPS-85JSLC1K-2
ISSN:0021-9568
1520-5134
DOI:10.1021/je050055m