On Sun, 16 May 2004 16:00:45 -0700 (PDT), mpdickens <md30022@...> wrote: >> > a solution composed of NaOH and H2o2? >> > You will get: >> > >> > Cu(OH) Blue in color >> > Cu(OH)2 Black in color. >> > >> > If you apply heat, the Cu(OH) will be oxidized to >> > Cu(OH)2. > >> Thanks, that's worth a try.... > >> ST > > Hey Stefan, > > Did you give the above a try? If so, what were the > results? > > not yet... i'll tell you then. ST
Message
Re: [Homebrew_PCBs] Blackening Copper
2004-05-17 by Stefan Trethan