----- Original Message ----- From: "DJ Delorie" <dj@...> To: <Homebrew_PCBs@yahoogroups.com> Sent: Tuesday, January 05, 2010 5:26 PM Subject: Re: [Homebrew_PCBs] How to dispose of etchant? > > "Leon Heller" <leon355@...> writes: >> > The FeCl etchant can be rejeuvenated with a little Hydrochloric acid; >> > eventually it also becomes CuCl etchant. >> >> + H2O2, otherwise it will be cuprous chloride which doesn't etch. > > What happens if you dump spent FeCl etchant into a CuCl ethant bath? It'll work OK with oxygenation. Leon
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Re: [Homebrew_PCBs] How to dispose of etchant?
2010-01-05 by Leon Heller