Low temperature cleaner for metal surfaces

Details Low temperature cleaner for metal surfaces Low temperature cleaner for metal surfaces

C - Chemistry, Metallurgy

11

D

134/29

C11D 7/06 (2006.01)

Patent

CA 1170144

ABSTRACT OF THE DISCLOSURE A process for cleaning soil, lubricants or other such contaminants from tin surfaces without visibly etching the tin surface by applying aqueous alkaline cleaning solutions to said surfaces, aqueous alkaline clean- ing solutions, and solid and aqueous concentrates from which the solutions may be formulated. The tin surface may be contacted with the solutions to substantially remove the contaminants therefrom by any conventional means known to the art. Spraying is a preferred means for contacting the surface with the solutions. The cleaning solutions may be effectively employed at temperatures as low as about 100°F and thus may be characterized as low temperature cleaners. The cleaning solutions comprise an alkaline component in an amount effective to substantially remove said contaminants from the tin surface and an inhibitor in an amount effective to inhibit or deter etch- ing of the tin surface. The inhibitor is-a compound selected from the group consisting of substituted benzenes having at least two or more hydroxy sub- stituents, quinones and substituted quinones.

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