Cooling system cleaning composition

Details Cooling system cleaning composition Cooling system cleaning composition

1984-06-15

1985-09-10

Lieberman, Paul

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 221, 134 2216, 134 41, 252 80, 252 86, 252 87, C23G 118, C23F 1112

Patent

active

045404437

ABSTRACT:
A cooling system cleaning composition comprising an aqueous solution of a tetra-alkali metal salt of ethylenediaminetetraacetic acid, a soluble salt of citric acid, and a soluble salt of nitric acid. The preferred composition also contains an aluminum corrosion inhibitor and has a pH between about 10 and about 14.

REFERENCES:
patent: 2153952 (1939-04-01), Bayes
patent: 2802788 (1957-08-01), Flaxman
patent: 3079343 (1963-02-01), Bernard
patent: 3308065 (1967-03-01), Lesinski
patent: 3419501 (1968-12-01), Levy
patent: 3492238 (1970-01-01), Wohlberg
patent: 3959166 (1976-05-01), Oberhofer et al.
patent: 3962109 (1976-06-01), Oberhofer et al.

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