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Subject: Re: advice on CuCl etchant?

From: "Phil" <phil1960us@...>
Date: 2004-09-28

thanks, I'm finding 30% H2O2 but at like $70/500 mL. That's not
worth it to me, I'd rather buy Ammonium Perchlorate powder at $25/kg.

Its quite a "new" experience using a local phone book... lol

--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@g...> wrote:
> On Tue, 28 Sep 2004 14:22:59 +0100, Les Newell <lesnewell@f...>
> wrote:
>
> > Hi Phil,
> >
> > I got it from an internet chemical supplier, along with the acid and
> > copper oxide. Their minimum order is something like 50UKP so it is not
> > practical to just get the H2O2 from them.
> >
> > Les
>
> That must be huge amount of acid and H2O2 for ~~100eur.
>
> I got it from a local chemicals shop for i think 6eur/l for H2O2,
with the
> bottle.
> Refill is cheaper but i haven't used it up yet.
>
> ST