Composition and method for preventing corrosion in aqueous...

Details Composition and method for preventing corrosion in aqueous... Composition and method for preventing corrosion in aqueous...

C - Chemistry, Metallurgy

23

F

31/51

C23F 11/167 (2006.01)

Patent

CA 1339521

A composition and method for inhibiting corrosion in industrial cooling waters which contain hardness and a pH of at least 6.5, which composition comprises a water-soluble inorganic phosphate capable of inhibiting corrosion in an aqueous alkaline environment and a co- or terpolymer of acrylic acid and certain substituted acrylamides such as t-butyl acrylamide. A water-soluble organic phosphonate capable of inhibiting corrosion in an alkaline environment may be used as an adjunct for the phosphate.

530973

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