INHIBITOR OF METAL CORROSION IN HYDROCHLORIC AND SULFURIC ACIDS Russian patent published in 2003 - IPC

Abstract RU 2210627 C1

FIELD: anticorrosive agents. SUBSTANCE: invention relates to protection of metals against corrosion in acid media using inhibitors and can be used in etching solutions in acidic treatment of equipment. Inhibitor comprises the following components, wt.-%: M nitrobenzal p-aminophenol, 19.2-16.2; dimethylphenylnonyl ammonium iodide, 26.9-29.4; 3- hydroxypyridazone-6, 15.4-11.8; urotropin, 38.5-42.6. Inhibitor inhibits corrosion of steel, nickel and cobalt and provides significant reduction of steel hydrogen absorption. EFFECT: enhanced effectiveness and valuable properties of inhibitor. 2 tbl, 3 ex

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RU 2 210 627 C1

Authors

Kravtsov E.E.

Andreev A.A.

Karimova Eh.G.

Starkova N.N.

Kaliev S.G.

Kondratenko T.S.

Dates

2003-08-20—Published

2002-01-31—Filed