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Author Castillo, R. ♦ Garza, C. ♦ Orozco, J.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CHEMISTRY ♦ WATER ♦ DIFFUSION ♦ PHENOL ♦ BINARY MIXTURES ♦ PHASE DIAGRAMS ♦ VISCOSITY
Abstract Mutual diffusion coefficients in the one-phase water-rich region of the phase diagram of the phenol/water system (0-10 wt% phenol) were measured using the Taylor dispersion technique, at several temperatures and mole fractions. The values range from 0.71 to 1.88 x 10{sup -9} m{sup 2}/s. In order to obtain evidence about the formation of aggregates of pseudomicelles in this system, as it is invoked in the interpretation of bulk and surface properties, correlation lengths of the concentration fluctuations have been calculated at 328 K using the diffusion data and measured viscosities. They agree with the assumption of aggregate formation in the bulk of the solution at a phenol weight fraction about 7-8 wt%. 16 refs., 2 figs., 1 tab.
ISSN 00223654
Educational Use Research
Learning Resource Type Article
Publisher Date 1992-02-06
Publisher Place United States
Journal Journal of Physical Chemistry
Volume Number 96
Issue Number 3


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