FIELD: anti-corrosive agents.
SUBSTANCE: invention relates to agents used in protection of metals against corrosion. Inhibitor comprises the following components, wt.-%: lanthanum oxide, 1.22-7.08; higher carboxylic acid triglycerides, 4.17-71.41; alkylbenzenesulfoacid (as measured for 100% of basic substance), 7.00-40.83; alkanolamine, 1.25-19.52; oxalic acid, 0.71-4.17, and organic solvent, the balance. Invention provides enhancing protective capacity in effect of aqueous medium in the presence of sodium chloride as an agent activating corrosion. Invention can be used in preparing oil-soluble inhibitors of sulfonate type being for anti-corrosive treatment of ferrous metals mainly.
EFFECT: improved and valuable properties of inhibitor.
6 cl, 2 tbl, 6 ex
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