FIELD: metallurgy.
SUBSTANCE: inhibitor of acid corrosion of steel corresponds to triazene derivative of N-aryl-urethane chosen from the group including: methyl-N-[4-(3-isonicotinyl-1 -triazenyl)phenyl] urethane, benzyl-N- [4-(3-isonicotinyl-1 -triazenyl)phenyl] urethane, O-methyl-N-[4-(3-amino-carbonyl)-1-triazenyl] phenyl-carbamotioat, 4,5-dimethyl-2-(n-isopropyl-oxy-carbonyl-amino) phenyl-3,6-dihydro-1,2-oxazine, 1-hydroxy-2-phenyl-5(6)-metoxy-carboxamidobenzimidazol-3-oxide and 4,4'-dimetoxy-carbonyl-amino-diphenyl-disulphide. The procedure for production of corrosion inhibitor mentioned above includes reaction of condensation [4+2] or [3+2] of cycloaddition.
EFFECT: ensuring degree of protection of metal from corrosion and ecological safety.
2 cl, 1 tbl, 6 ex
