FIELD: chemistry; compositions used for protection of equipment against corrosion; cooling units of industrial equipment. SUBSTANCE: proposed corrosion inhibitor contains organo-mineral complex obtained by oxidizing alkali thermal destruction of biogenic wastes, humates, sodium phosphate (di- or trisodium phosphate) and water . Proposed corrosion inhibitor is universal in application. EFFECT: enhanced reliability of corrosion protection of metals. 3 cl, 2 tbl, 4 ex
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