High lead solder corrosion inhibitors

Details High lead solder corrosion inhibitors High lead solder corrosion inhibitors

1982-05-19

1983-09-06

Gluck, Irwin

Compositions

Heat-exchange, low-freezing or pour point, or high boiling...

Organic components

62DIG20, 106 1412, 106 1415, 106 1416, 106 1444, 106 1445, 252 68, 252 76, 252 783, 252181, 252389R, 252389A, 422 13, 422 16, 422 18, C09K 500, C23F 1110, C23F 1112, C23F 1114

Patent

active

044028474

ABSTRACT:
Compositions and method of using said compositions for inhibiting mineral scale and the corrosion of high lead solder and the cavitation-erosion corrosion of aluminum in aqueous systems are disclosed. Unexpectedly, a mixture of a siloxane-silicate copolymer with an azole is effective in reducing the corrosion of high lead solder and aluminum, particularly the cavitation-erosion corrosion of aluminum in contact with aqueous liquids, such as aqueous alcohol solutions used as heat transfer media. Antifreeze concentrates and a process for inhibiting corrosion are also disclosed.

REFERENCES:
patent: 3341469 (1967-09-01), Pines et al.
patent: 3672821 (1972-09-01), Schlussler
patent: 4210548 (1980-07-01), Hirozawa et al.
patent: 4234440 (1980-11-01), Hirozawa et al.
patent: 4241016 (1980-12-01), Hirozawa et al.
patent: 4354002 (1982-12-01), Davis et al.
patent: 4362644 (1982-12-01), Davis et al.

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