FIELD: corrosion protection. SUBSTANCE: invention provides corrosion inhibitors having general formula I: 
(I) (wherein meanings of substituents are disclosed in claim 1) or their zirconium, bismuth, or calcium salts as well as their salts with compounds of general formula II: 
(II) (wherein meanings of substituents are disclosed in claim 1). These compounds serve for creating water-based compositions specially for varnish and lacquer systems to strengthen adhesion of these systems with metal surface to be protected. EFFECT: enhanced corrosion protection efficiency. 21 cl, 3 tbl, 25 ex
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