Unexpectedly low extent of adsorption of non-ionic ethoxylated surfactants on alumina

Stephen A. Lawrence, Jennifer Pilc, Jennifer Readman, P.A. Sermon

Journal of the Chemical Society Chemical Communications · 1987 · 24 citations · 0 references

Concepts

Abstract

It has been shown for the first time that non-ionic ethoxylated surfactants adsorb much less extensively from aqueous solution (at temperatures below their cloud points) on alumina surfaces than on silica surfaces; this is attributed to the formation of surfactant: Al3+ complexes which are stable relative to the surface-adsorbed state.