Low level zinc corrosion inhibitors

Details Low level zinc corrosion inhibitors Low level zinc corrosion inhibitors

C - Chemistry, Metallurgy

23

F

31/35

C23F 11/16 (2006.01) C23F 11/08 (2006.01)

Patent

CA 1174451

ABSTRACT OF THE DISCLOSURE An improved method for preventing corrosion of metals in contact with alkaline pH industrial cooling waters which contain as a corrosion inhibitor: (a) an organic phosphorous inhibitor in combination with (b) a water-soluble zinc compound, which comprises treating such waters with a zinc chelating amount of the phosphorous-containing chelant: Image where n plus m equal about 6.

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