Etching liquid for etching aluminum

Details Etching liquid for etching aluminum Etching liquid for etching aluminum

1977-05-02

1978-06-27

Powell, William A.

Compositions

Etching or brightening compositions

Alkali metal hydroxide containing

156656, 156659, 156665, 252156, C09K 1302, C23F 0000

Patent

active

040973948

ABSTRACT:
Etching liquid for selectively etching aluminum and alloys, which consists of a solution of carbonate and/or hydroxide, phosphate and ferricyanide. This etching liquid gives products having very good boundary resolution and little undercutting.

REFERENCES:
patent: 3168478 (1965-02-01), Stefcik et al.
patent: 3532569 (1970-10-01), Gould

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