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Subject: Re: [Homebrew_PCBs] Re: FeCl3 storage

From: Adam Seychell <a_seychell@...>
Date: 2009-11-06

morriso2002 wrote:
>
> Thanks to everyone who replied - particularly with the news that Farnell
> still sells FeCl3. It looks like the hexahydrate, but that's OK. It
> seems I will be able to continue using my favourite etchant for a while yet.
>

Any particular reason you want it without water molecules ?
You have to add water for it to etch anyway.

People prefer to buy and sell a near saturated 40% (wt) solution because
it is easier to store long term.