Homebrew PCBs

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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Mother nature is a bitch.
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Please be advised what was said may be absolutely wrong, and hereby this disclaimer follows.  I reserve the right to be wrong and admit it in front of the entire world.



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