Abstract: Compositions are disclosed for inhibiting scale formation and dispersing solids particulate matter in aqueous mediums. The compositions comprise an acrylic acid/lower alkyl hydroxy acrylate copolymer (I) in combination with a water soluble polymeric material (II) having the formula ##STR1## wherein a or b may be zero or a positive integer, with the proviso that a+b<1; and wherein d is H or HSO.sub.3. From about 0.1-500 parts (based upon 1 million parts of the aqueous medium treated) of the combined treatment (I and II) are administered to the particular aqueous system for which treatment is desired.

Abstract: Method and composition for controlling the deposition of scale imparting precipitates on structural parts of a system exposed to an aqueous medium containing scale imparting precipitates, under scale imparting conditions, are disclosed. Specifically, these precipitates are either calcium carbonate, calcium sulfate, calcium phosphate or mixtures thereof. The method and composition are also efficacious in dispersing inorganic and organic matter, which may exist within a cooling system, boiler system, or the like. The composition comprises an acrylic acid/lower alkyl hydroxylated acrylate copolymer (I) which is administered to the system in combination with an ester of an aliphatic sulphodicarboxylic acid (II). Preferred esters include the dioctylester of sodium sulphosuccinic acid, the diisobutylester of sodium sulphosuccinic acid, the dihexylester of sodium sulphosuccinic acid, and the diamylester of sodium sulphosuccinic acid.

Abstract: Methods are disclosed for inhibiting scale formation and dispersing solids particulate matter in aqueous mediums. An acrylic acid/lower alkyl hydroxy acrylate copolymer (I) in combination with a water soluble polymeric material (II) having the formula ##STR1## wherein a or b may be zero or a positive integer, with the proviso that a+b>1; and wherein d is H or HSO.sub.3, are disclosed. The method comprises administering from about 0.1-500 parts (based upon 1 million parts of the aqueous medium treated) of the combined treatment (I and II) to the particular aqueous system for which treatment is desired.

Abstract: Method and composition for controlling the deposition of scale imparting precipitates on structural parts of a system exposed to an aqueous medium containing scale imparting precipitates, under scale imparting conditions, are disclosed. Specifically, these precipitates are either calcium carbonate, calcium sulfate, calcium phosphate or mixtures thereof. The method and composition are also efficacious in dispersing inorganic matter, which may exist within a cooling system, boiler system, or the like.

Abstract: Method and composition for controlling the deposition of scale imparting precipitates on structural parts of a system exposed to an aqueous medium containing scale imparting precipitates, under scale imparting conditions are disclosed. Specifically, these precipitates are either calcium carbonate, calcium sulfate, calcium phosphate or mixtures thereof. The method and composition are also efficacious in dispersing inorganic and organic matter, which may exist within a cooling system, boiler system, or the like. The composition comprises an acrylic acid/lower alkyl hydroxylated acrylate copolymer (I) which is administered to the system in combination with an alkyl phenoxy polyethoxyethanol compound (II). The method comprises administering an effective amount of the combined treatment (I and II) to the aqueous system to be treated.

Abstract: Method and composition for controlling the deposition of scale imparting precipitates on structural parts of a system exposed to an aqueous medium containing scale imparting precipitates, under scale imparting conditions, are disclosed. Specifically, these precipitates are either calcium carbonate, calcium sulfate, calcium phosphate or mixtures thereof. The method and composition are also efficacious in dispersing inorganic and organic matter, which may exist within a cooling system, boiler system, or the like. The composition comprises an acrylic acid/lower alkyl hydroxylated acrylate copolymer (I) which is administered to the system in combination with an ester of an aliphatic sulphodicarboxylic acid (II). Preferred esters include the dioctylester of sodium sulphosuccinic acid, the diisobutylester of sodium sulphosuccinic acid, the dihexylester of sodium sulphosuccinic acid, and the diamylester of sodium sulphosuccinic acid.