Abstract
The rate of adsorption of sulphuric acid on wool is affected by surfactants. The effect of cationic and non‐ionic surfactants is small, but some anionic surfactants considerably decrease the rate of adsorption of acid, the effect depending on the concentration and on the critical micelle concentration of the agent. All agents are themselves adsorbed to various extents, and for anionic surfactants a correlation appears to exist between acid and surfactant adsorption. This correlation is no longer found if sodium sulphate is added, since this reduces the rate of adsorption of anionic surfactant, but increases the rate of adsorption of acid.
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