Systems inhibited against corrosion and/or scale deposition

Details Systems inhibited against corrosion and/or scale deposition Systems inhibited against corrosion and/or scale deposition

1987-06-22

1989-05-09

Castel, Benoit

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Maintaining environment nondestructive to metal

106 1412, 106 1413, 106 1414, 106 1831, 210699, 252493, 252180, 252181, 2523892, 252396, 422 17, C23F 1116, C02F 514

Patent

active

048287954

ABSTRACT:
Aqueous or partly aqueous systems are treated against the corrosion of metals, especially ferrous metals, in contact therewith, and/or against scale deposition therefrom, by adding to these systems from 0.1 to 50 000 ppm of 2-hydroxyphosphonoacetic acid having the formula I ##STR1## or a water-soluble salt thereof.

REFERENCES:
patent: 3032500 (1962-05-01), Milks
patent: 3719598 (1973-03-01), King
patent: 3933427 (1976-01-01), Bohnsack et al.
patent: 4042324 (1977-08-01), Auel et al.
patent: 4057511 (1977-11-01), Bohnsack et al.
patent: 4105551 (1978-08-01), Smith et al.
patent: 4243417 (1981-01-01), Grourke et al.
patent: 4689200 (1987-08-01), Cook et al.

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