Oxidative decomposition of difficultly biodegradable nonionic surfactants, oxyethylated phenols with various degrees of oxyethylation (Neonols AF 9-6, 9-10, 9-12), was examined. The initial rate and extent of the oxidation depend on the degree of oxyethylation, anion of the iron salt added, and temperatureye

The oxidative degradation of a difficultly degradable surfactant, oxyethylated isononylphenol (Neonol AF 9-12), with aqueous hydrogen peroxide containing iron(III) chloride was studied tensimetrically.

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