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2 124 070

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C1

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IPC

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Application

95105211/02, 1995-04-06

(22)

Actual filing date

1995-04-06

(45)

Published

1998-12-27

(72)

Inventor

Kravtsov E.E.Kondratenko T.S.Kaliev S.G.Samedov M.I.Privezentsev A.V.Idiatulin S.A.Kharitonova N.A.

(73)

Holder

Kravtsov Evgenij Evgen'Evich

INHIBITOR OF METAL CORROSION IN SULFURIC AND HYDROCHLORIC ACIDS Russian patent published in 1998 - IPC

Abstract RU 2124070 C1

FIELD: protection of metals from corrosion in sulfuric and hydrochloric acid, more particularly etching of metals in machine building. SUBSTANCE: greater degree of protection of steel, aluminium and titanium from corrosion and greater degree of steel from hydrogen absorption are achieved by using 13.75-16.6 wt % amine and N-(5-butyl-2-furfulidene-(5'-oxy-2'-pyrimidinyl) sulfonylamide as condensation product and adding 23.78-26.6 wt % 2,2-(diaminodiethyl sulfide dihydroiodide to inhibitor, 26.2-93.3 wt % 9-(3,5- dinitrophenyl)acridine and 23.2-36.2 wt % urotropin. EFFECT: improved properties of the inhibitor. 1 tbl

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RU 2 124 070 C1

Authors

Kravtsov E.E.

Kondratenko T.S.

Kaliev S.G.

Samedov M.I.

Privezentsev A.V.

Idiatulin S.A.

Kharitonova N.A.

Dates

1998-12-27—Published

1995-04-06—Filed

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