Aqueous acid composition and method of use

Details Aqueous acid composition and method of use Aqueous acid composition and method of use

1980-12-05

1984-02-07

Silverberg, Sam

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

252 82, 134 41, 134 28, 134 29, 134 30, C23G 102

Patent

active

044301286

ABSTRACT:
Aqueous acid compositions are described which comprise (a) hydroxyethylethylenediaminetriacetic acid, and (b) a compatible acid corrosion inhibitor. The compositions are useful in removing iron oxide scale from metal surfaces.

REFERENCES:
patent: Re30796 (1981-11-01), Lesinski
patent: 3527609 (1970-09-01), Vinso
patent: 3664870 (1972-05-01), Oberhofer
patent: 3721629 (1973-03-01), Goodenough
patent: 4250048 (1981-02-01), Leveskis

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