Corrosion inhibitor

Details Corrosion inhibitor Corrosion inhibitor

1985-06-14

1987-05-12

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Maintaining environment nondestructive to metal

422 15, 422 16, 422 17, 210699, 210700, 252390, 252392, 252394, 252396, C23F 1112, C23F 1114, C23F 11167

Patent

active

046648844

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; and (c) a triazole, preferably benzotriazole or tolyltriazole.

REFERENCES:
patent: 3935125 (1976-01-01), Jacob
patent: 4057511 (1978-11-01), Bohnsack et al.
patent: 4406811 (1983-09-01), Christensen et al.
patent: 4497713 (1985-05-01), Geiger
O'Neal, et al., Corrosion Inhibiting Synergism by Triazoles in Aqueous Multimetal Systems, Materials Performance, 15 (2), 9-13.

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