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Subject: Etchant recycling

From: "dkesterline" <desterline@...>
Date: 2003-12-28

Hello,

I've been experimenting with toner transfer for a while now, and I'm
starting to see acceptable results. This group has been a great help
in my endevors.

I read some posts in the archives about recycling (revitalizing might
be a better word) Feric Chloride etchant.

As I read the instructions, using two iron nails as electrodes, run
about 1 amp through the solution. (more details would have been
helpfull)

I tried this and my results were less than stellar. The negative
terminal collected particulate copper (kinda looked like a sponge,
but just dust, wiped off easily) and the negative terminal did erode
some (about 1 hour). In the end my etchant looked like brown mud.
Then I tried etching with it and it seemed slower than before I did
it.

Perhaps sombody could advise?

Thanks,
Denny