C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
134/14
C11D 9/00 (2006.01) C09K 13/02 (2006.01) C11D 7/06 (2006.01) C23G 1/18 (2006.01)
Patent
CA 1057154
ABSTRACT This invention relates to a novel and improved composition for cleaning surfaces of aluminium and aluminium alloys. The essence of the present invent- ion is to combine in aqueous solution an alkali metal hydroxide e.g. sodium or potassium hydroxide with a salt of an unsaturated fatty acid. In a preferred embodiment the composition contains a calcium soap dispersant. Such composit- ions are found to have less tendency to attack the surfaces being cleaned.
208683
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