METHOD OF PROTECTING ALUMINIUM FROM CORROSION

摘要

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