On 27/09/10 20:15, Hector Garcia wrote: > Regenerate it > > http://www.qsl.net/iz7ath/web/02_brew/14_howto/02_clor/index.htm Hmm, HCl+H2O2... isn't that the 'starter' for a CuCl etch bath? That is, you mix HCl and H2O2, start up the air bubbler, then chuck in a few chunks of copper and wait. So after that, you'd pretty much end up with a 'hybrid' etch bath, consisting of FeCl3 and CuCl... interesting... Might explain why my etch bath is going somewhat green. Would 9% H2O2 and 'brick cleaner' HCl be OK for this, or do I need something more concentrated? Thanks, -- Phil. ygroups@... http://www.philpem.me.uk/
Message
Re: [Homebrew_PCBs] Precipitate in ferric chloride storage bottle
2010-10-01 by Philip Pemberton