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2 answers

It sounds like you are trying to do etching or some kind of print making process, possibly photographic plates.

One of the suggested acids to etch is ferric chloride
and the last link shows you how to "regenerate" it.

2006-11-20 21:00:20 · answer #1 · answered by sandra_panda 6 · 0 0

en inglés por favor.

2006-11-20 20:51:58 · answer #2 · answered by Anonymous · 0 0

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