Hello Chris,
Friday, April 7, 2006, 3:55:54 PM, you wrote:
> Hi guys,
> Perhaps one of you chemistry guys knows what happened here. While
> etching a board, I got to thinking about how the Ferric Chloride
> stains some metals (and wood, and other things) black. Always one to
> try things, I dipped an aluminum bar in the stuff for a few seconds.
> When I pulled it out, it had what appears to be rust scale on it like
> crazy! I assume this to be bits of Copper and not rust, but I was
> wondering if someone could explain what happened there? I don't think
> it was electrolysis - no electricty going through the mess.
> Yet, somehow, the copper seemed to attract to the aluminum - it didn't
> stick though. A rinse in water removed it quickly. The aluminum did
> turn gray in color and not black like i had hoped - so it was a failed
> experiment. But, it sure was interesting and raised a few questions!
> Chris
You should try with some used Fe3Cl
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