FIELD: metallurgy.
SUBSTANCE: passivating composition for protection of metals against atmospheric corrosion contains an active base - salts of carbonic acids and amino acids, at the same time it additionally contains complexonates of phosphonic acids with bivalent and trivalent 'metals in a composition with a compound of azol class at the following ratio of components, wt %: equimolar mixture of carbonic acids and amino acids salts 0.050-1.500; equimolar mixture of complexonates of phosphonic acids 0.050-0.500; a compound of azol class 0.015-0.150; water - balance.
EFFECT: composition is not toxic, has high efficiency at lower concentrations and forms thin protective films on a metal surface that prevent atmospheric corrosion.
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