Homebrew PCBs

2010/9/23 Philip Pemberton <ygroups@...>
>
>
>
> Hi guys.
>
> I just dumped the contents of my 2-litre concertina bottle of FeCl3 into
> my etching tank, and about half way through I was treated to a loud
> HISSSSS as this lot got dumped in the funnel:
>
> http://groups.yahoo.com/group/Homebrew_PCBs/photos/album/338698001/pic/1053817307/view
>
> Basically, it's a dark brown precipitate that's formed into round loops,
> not unlike dead leaves in autumn. I now have the unenviable job of
> dismantling the tank and cleaning out the base and the air bubbler. One
> of these days I'll rig up a proper circulation pump and filter system
> (not unlike those on photo-lab machines if you've ever seen inside one
> of those)...
>
> But anyway, back to the subject of my question. Does anyone know what
> this stuff is? My FeCl3 is a somewhat greenish brown at this point, but
> I've got a 5-litre bottle of "hyper-activated" FeCl3 in the garage.
> Would there be any benefit to adding a bit more concentrate to the
> working tank?
>
> And the final question: how the hell do I get rid of this stuff? Flush
> it down the loo? Double-bag it and chuck it in the bin? Call a local
> haz-chem company who won't touch it until I've got some arbitrary number
> of litres of the stuff and am willing to pay several hundred quid in
> disposal fees?
>
> Thanks,
> --
> Phil.
> ygroups@...
> http://www.philpem.me.uk/
>
> 

Regenerate it

http://www.qsl.net/iz7ath/web/02_brew/14_howto/02_clor/index.htm

regards

--
Hector
--
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