Corrosion inhibitor

Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Maintaining environment nondestructive to metal

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Details

25238922, 25238954, 210699, 210700, 422 15, 422 16, 422 17, C23F 1112, C23F 1114, C23F 11167

Patent

active

048063100

ABSTRACT:
A corrosion inhibitor for ferrous and non-ferrous aqueous systems comprising (a) a water soluble phosphonic acid or salt thereof, preferably an amino methylene phosphonic acid; (b) a phosphonocarboxylic acid, preferably a phosphonoalkane carboxylic acid; (c) an azole, preferably benzotriazole or tolyltriazole; and (d) a water soluble molybdate salt, preferably sodium molybdate.

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Materials Performance, "Corrosion Inhibiting Synergism by Triazoles in Aqueous Multimetal Systems", pp. 9-13, Cleveland O'Neal, Jr., et al, Jan. 1975.

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