METAL STRIPPING ADDITIVE, COMPOSITION CONTAINING THE SAME, AND METHOD FOR STRIPPING METAL BY USING THE COMPOSITION
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United States of America Patent
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Issued Date -
Aug 28, 2014
app pub date -
Aug 2, 2013
filing date -
Feb 22, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides a metal stripping additive, composition containing the same, and method for stripping metal by using the composition. The metal stripping additive comprises a phosphate, a carbonate, and a component selected from at least one of citric acid or a derivative thereof, oxalate or a derivative thereof, malate or a derivative thereof. The metal stripping additive is used with nitric acid as the metal stripping composition of the present invention. The present method has advantages of being capable of stripping various metals, low corrosion, low toxicity, and being applicable under ambient temperature.
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