Suggested are biocide compositions, comprising (a) Esters of ethoxylated alcohols according to formula (I) R1CO(OCH2CH2)nOR2 (I) In which R1CO stands for a saturated or unsaturated acyl radical having 8 to 22 carbon atoms, R2 represents an alkyl radical having 1 to 10 carbon atoms, n denominates an integer of from 1 to 100, on condition that said esters exhibit an HLB value within a range of 10 to 17: (b) Biocides and optionally (c) Oil components or co-solvents and/or (d) Emulsifiers. The compositions show high solubility for biocides and improved emulsification properties.
