--- 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.