Abstract: A composition for corrosion control in aqueous systems, the composition providing a formulation of a concentrated aluminum corrosion inhibitor; and (i) a polycarboxylic acid polymer, (ii) a sulfonic acid polymer, (iii) a combination of a polycarboxylic acid and a polysulfonic acid, (iv) an organic phosphonate, (v) a combination of a phosphonate and a polycarboxylic acid, or (vi) a combination of a phosphonate and a polysulfonic acid. A method for corrosion control in aqueous systems, the method providing a concentrated formulation, the concentrated formulation having an aluminum corrosion inhibitor and (i) a polycarboxylic acid polymer, (ii) a sulfonic acid polymer, (iii) a combination of a polycarboxylic acid and a polysulfonic acid, (iv) an organic phosphonate, (v) a combination of a phosphonate and a polycarboxylic acid, or (vi) a combination of a phosphonate and a polysulfonic acid; and delivering the concentrated formulation to an aqueous stream.

Abstract: A composition for corrosion control in aqueous systems, the composition providing a formulation of a concentrated aluminum corrosion inhibitor; and (i) a polycarboxylic acid polymer, (ii) a sulfonic acid polymer, (iii) a combination of a polycarboxylic acid and a polysulfonic acid, (iv) an organic phosphonate, (v) a combination of a phosphonate and a polycarboxylic acid, or (vi) a combination of a phosphonate and a polysulfonic acid. A method for corrosion control in aqueous systems, the method providing a concentrated formulation, the concentrated formulation having an aluminum corrosion inhibitor and (i) a polycarboxylic acid polymer, (ii) a sulfonic acid polymer, (iii) a combination of a polycarboxylic acid and a polysulfonic acid, (iv) an organic phosphonate, (v) a combination of a phosphonate and a polycarboxylic acid, or (vi) a combination of a phosphonate and a polysulfonic acid; and delivering the concentrated formulation to an aqueous stream.

Abstract: Methods are provided for improving the stability and shelf life of film sensors. The film sensors include a combination of polymeric matrix film material, analyte indicator, and solvent which has been heated in a first heat treatment application to volatilize most of the solvent and to solidify the analyte indicator to form the film sensor. The improvement comprises subjecting the film sensor to a second heat treatment to set the film and improve stability and shelf life.

Abstract: The present invention discloses a thin reagent containing film sensor for detecting and measuring free chlorine in water, where components of the film sensor are a polymeric substrate that contains reactive material, an organic polyhydroxy compound, a reagent that creates an associated polymeric matrix, and an indicator; and a method for making the same. The film sensor can be formed to fit a specific dimension or shape. The film sensor swells or dissolves when exposed to aqueous solutions so that said reagent is released so that it can react with free chlorine, or the film sensor swells when exposed to aqueous solutions so that the aqueous solution diffuses into the film sensor and reacts with said reagent contained within the swollen film sensor.