Flavor aluminum cleaning composition and process

Details Flavor aluminum cleaning composition and process Flavor aluminum cleaning composition and process

C - Chemistry, Metallurgy

23

G

149/21

C23G 1/12 (2006.01)

Patent

CA 1223182

Abstract of the Disclosure An improved aqueous acidic cleaning composition and process for cleaning aluminum surfaces, particularly aluminum beverage containers, to enhance the flavor characteristics of the beverages subsequently packaged therein. The aqueous acidic cleaning solution contains a solution soluble fluoride containing compound, a solution soluble boron containing compound, optionally but preferably one or a combination of surfactants, and hydrogen ions to provide a pH of less than about 3.5. The concentration of boron ions is present in a stoichiometric excess relative to the free-fluoride ions present which are required to form the anion HF-4.

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