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Homebrew PCBs

Index last updated: 2026-04-28 23:05 UTC

Message

Re: Disposing of Etchant.

2010-02-28 by Ben L

--- In Homebrew_PCBs@yahoogroups.com, "Jachin" <jachin.s@...> wrote:
>
> 
> I would not want the stuff to be around for more than a week.  I am working in borrowed lab space, and  I don't want to take up too much space.  That being said I am only making boards that are 2x2, and it might take a while to accrue significant(< .5 liter ) amounts of the leftover etchant.  Do you have plans to replenish the used FeCL?
> 
> --- In Homebrew_PCBs@yahoogroups.com, DJ Delorie <dj@> wrote:
> >
> > 
> > "Jachin" <jachin.s@> writes:
> > > storing the used etchant for long periods is not feasible.
> > 
> > How long is "long periods" ?  Mine's been sitting on my workbench for
> > two years now, and I have some used FeCl that I got years before that.
> >
>


FeCl keeps for a long time.

You can add some Baking Soda leave it open til it dries up then seal it up in something and throw it away.  You are talking about a very small amount.

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