SLIME CONTROL COMPOSITIONS CONTAINING ORGANO-BROMINE COMPOUNDS

The present invention relates to certain processes and compositions useful for inhibiting and/or controlling the growth of slime in water and, in particular, water employed for industrial purposes. Water employed in the manufacture of pulp paper and water employed in cooling water systems, as well as other industrial waters, provide environments which are conducive to slime formation. The novel compositions of the present invention are mixtures which show unexpected synergistic activity against microorganisms, including bacteria, fungi and algae, which produce slime in aqueous systems. The slime, of course, is objectionable from an operational and/or an aesthetic point of view. Specifically, the invention is directed to and the use of compositions comprising a combination of 5-chloro-4-phenyl-1, 2-dithiole-3-one and organo-bromine compounds (or mixtures thereof). The inventive compositions inhibit the growth of slime in water, or more specifically, possess biocidal activity against bacteria, fungi and/or algae. The organo-bromine compounds contemplated for use in accordance with the present invention may be exemplified by; bis-1, 4-bromoacetoxy-2-butyne; bis-1, 4-bromoacetoxy-2-butene; alpha-bromo-p-methylacetophenone and beta-bromo-beta-nitrostyrene.