Alkaline cleaner for aluminum

Details Alkaline cleaner for aluminum Alkaline cleaner for aluminum

1987-07-13

1988-08-09

Clingman, A. Lionel

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

252156, 252527, 252546, 134 2, 134 3, 134 40, 134 41, 156665, C11D 706

Patent

active

047626380

ABSTRACT:
A cleaning composition bath, concentrate for its preparation, and method of use of an aqueous alkaline cleaner comprising an ethylenediaminetetraacetic acid or nitrilotriacetic acid alkali metal salt, an inorganic alkali metal phosphate, a surfactant and optionally an aluminum sequestrant, other inorganic salts and an alkali metal hydroxide, if needed, to adjust the pH of the composition to at least 11.0.

REFERENCES:
patent: 3888783 (1975-06-01), Rodzewich
patent: 3969135 (1976-07-01), King et al.
patent: 3975215 (1976-08-01), Rodzewich
patent: 4009115 (1977-02-01), Binns
patent: 4093566 (1978-06-01), MacNamara et al.
patent: 4116853 (1978-09-01), Binns
patent: 4124407 (1978-11-01), Binns
patent: 4477290 (1984-10-01), Carroll et al.
patent: 4540444 (1985-09-01), Kelly
Organic Chelating Agents, Thomas A. Downey, Soap and Chemical Specialties, 1966.

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