AbstractThe spreading on the wool surface of emulsion droplets, stabilised by blends of calcium dodecylbenzene‐sulphonate and polyoxyethylene nonylphenol condensates, and containing toxaphene and diazinon as toxicants, kerosene and xylene as solvents, is mainly due to the intermolecular forces operating at the resulting interface, i.e. van der Waals forces, π‐ and H