Method and composition for inhibiting corrosion

Details Method and composition for inhibiting corrosion Method and composition for inhibiting corrosion

1994-08-15

1996-12-31

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252390, 25238962, 25238961, 25218828, 422 16, 210750, 106 1437, C23F 1114, C23F 1500, C23C 2200

Patent

active

055891071

ABSTRACT:
Corrosion of ferrous metal surfaces in an aqueous system, such as a boiler system, is inhibited by adding a first component and a second component, the first component being preferably carbohydrazide, hydrazine, or a salt thereof, the second component being selected from the group consisting of certain hydroxylamine compounds or mixtures thereof, preferably N,N-diethylhydroxylamine. The weight ratio of the added first component to the added second component is between about 4:1 and about 1:4.

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