✦ LIBER ✦

Structural properties of water-ethanol mixtures: A correlation with the formation of micellar aggregates

✍ Scribed by A. Cipiciani; G. Onori; G. Savelli

Publisher: Elsevier Science
Year: 1988
Tongue: English
Weight: 327 KB
Volume: 143
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(88)87404-9

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✦ Synopsis

The effect of ethanol on the critical micelle concentration (CMC) of several surfactant aqueous solutions has been studied by surface tension methods. The results show that with increasing alcohol concentration the CMC values first reach a minimum at an intermediate ethanol mole fraction x$=0.055 and then increase with increasing x2. The value of $ is close to that at which structural changes in the mixture occur as inferred from compressibility and optical absorption measurements. The present experiments support the assumption that the dominant mechanism by which ethanol affects the micellization process is through its effect on the structure of water.

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