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2 126 851

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C1

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IPC

(21) (22)

Application

95105263/02, 1995-04-06

(22)

Actual filing date

1995-04-06

(45)

Published

1999-02-27

(72)

Inventor

Kravtsov E.E.Starkova N.N.Dutljakova O.S.Ushakova N.M.Kondratenko T.S.Godovikov V.P.

(73)

Holder

Astrakhanskij Gosudarstvennyj Tekhnicheskij Universitet

INHIBITOR AGAINST METAL CORROSION IN SULFURIC, HYDROCHLORIC, AND SULFAMIC ACIDS Russian patent published in 1999 - IPC

Abstract RU 2126851 C1

FIELD: corrosion protection. SUBSTANCE: invention can be applied for etching steel and titanium in metallurgy and mechanical engineering. Inhibitor contains, wt. %: amine-aldehyde condensation product n-(3-methoxy-4-hydroxybezylidene)-4-amino-5-bromo-1- phenylpyridaz-6-one, 14.0-19.0; 2-nitro-2-methylpropane-1,3-diol, 18.7- 23.8; 4-methyl-5--β--hydroxyethyl-N-(2-methyl-4-amino-5- methylpyrimidyl)thiazolium iodide, 20.3-23.8; and urotropin, 33.3-46.8. EFFECT: improved protection of steel and titanium against corrosion and protection of steel against hydrogen charge. 2 tbl

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RU 2 126 851 C1

Authors

Kravtsov E.E.

Starkova N.N.

Dutljakova O.S.

Ushakova N.M.

Kondratenko T.S.

Godovikov V.P.

Dates

1999-02-27—Published

1995-04-06—Filed

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