Removal of copper containing incrustations from ferrous surfaces
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United States of America
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Aug 18, 1981
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N/A
app pub date -
Sep 14, 1978
filing date -
Oct 18, 1965
priority date (Note) -
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Abstract
.Iadd.The invention concerns a method of removing copper from a ferrous metal surface without excessive corrosion of the ferrous metal surface. In the method, the copper is dissolved with an aqueous alkaline solution containing a ferric chelate of an alkylene polyamine polyacetic acid chelating agent. .Iaddend.
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