The invention relates to highly concentrated aqueous emulsions of
peroxides comprising an anti-freeze agent, a polyvinyl acetate with a
degree of hydrolysis between 45 and 80%, and optionally a non-ionic
surfactant with an HLB value greater than 10 selected from alkylene oxide
block-copolymers, ethoxylated fatty alcohols, and ethoxyfated fatty
acids. The emulsions have a low COD value and are safe, storage stable,
and generally applicable.