Interactions between Small Inorganic Ions and Uncharged Monolayers on the Water/Air Interface.

ABSTRACT: The interaction of several simple electrolytes with uncharged insoluble monolayers is studied on the basis of tensiometric and potentiometric data for the surface electrolyte solution|air. The induced adsorption of electrolyte on the monolayer is determined via a combination of data for equilibrium spreading pressure and surface pressure versus area isotherms. We show that the monolayer-induced adsorption of electrolyte is not only strongly ion-specific but also surfactant-specific. The comparison between the ion-specific effects on a carboxylic acid monolayer at low pH and an ester monolayer shows that the anion series follows the same order while the cation series reverses. The effect of the electrolyte on the chemical potential of the monolayer shows attraction between the surfactant an

SUBMITTER: Peychev B 

PROVIDER: S-EPMC10068745 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature