FIELD: metal processing.
SUBSTANCE: invention relates to protection of metals from corrosion and can be used in etching baths and acid cleaning of equipment. Method of protecting aluminium from corrosion in sulphuric acid involves introduction to aggressive medium inhibitor containing organic compounds, inhibitor used is an aqueous extract of leaves of swallowwort, which is introduced in aggressive medium in amount of 0.6–1.0 g in terms of dry substance per litre of aggressive medium.
EFFECT: technical result is increase of efficiency of protection against corrosion of aluminium.
1 cl, 1 tbl, 1 ex
| Title | Year | Author | Number |
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| INHIBITOR OF CORROSION OF FERRIC METALS IN ACID MEDIA | 1999 |
|
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| PROCESS LIQUID FOR LIQUIDATION (LONG-TERM SUSPENSION) OF OIL AND GAS WELLS (2 VARIANTS) | 2016 |
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RU2650146C1 |
| VAPOUR-PHASE ACID CORROSION INHIBITORS AND PROCEDURE FOR THEIR PRODUCTION | 2008 |
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RU2453632C2 |
| ACID CORROSION INHIBITOR | 2015 |
|
RU2661201C1 |
