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This document summarizes a study on the defoaming effect of calcium oleate in aqueous solutions of anionic and nonionic surfactants under alkaline conditions without oil. The researchers found that calcium oleate destabilizes foam through two mechanisms: 1) incorporation of oleate and calcium ions into surfactant monolayers, decreasing film stability, and 2) bridging of films by calcium oleate particles, especially in freshly made solutions where precipitation was occurring. Foams generated after aging when

Author

Juan Camilo Rodriguez

Language

EN