Method for cleaning aluminum at low temperatures

Cleaning and liquid contact with solids – Processes – For metallic – siliceous – or calcareous basework – including...

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134 10, 134 40, 134 41, 252142, B08B 308

Patent

active

041244079

ABSTRACT:
Lubricants and metallic fines are removed from aluminum surfaces by contacting the surfaces with an aqueous solution containing an active fluoride compound, sulfuric acid, and a surfactant.

REFERENCES:
patent: 2376082 (1945-05-01), Pullen
patent: 3969135 (1976-07-01), King et al.
Amchem Products, Inc. Data Sheet, "Ridoline" 121/122/123, Apr. 1975, all pages pertinent.

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