Use of the Gibbs equation to calculate adsorption into monolayer-covered surfaces
- 1 January 1980
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 76, 118-125
- https://doi.org/10.1039/f19807600118
Abstract
A formal equation has been derived to describe the change in equilibrium surface pressure when the concentration of a soluble surfactant is varied in a subphase covered by a constant amount of insoluble monolayer on a fixed area of surface. Approximations are suggested which enable the equation to be applied to experimental data for the calculation of the surface excess concentration of surfactant.An example is given and the surface penetration results discussed.Keywords
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