Homebrew PCBs

On Fri, 30 Jun 2006 14:54:28 +0200, Robert Hedan  
<robert.hedan@videotron.ca> wrote:

>
> I've once gotten a dose of ammonia (fridge) and another of chlorine (from
> the pool) and never want to breath toxic fumes like that, ever.  I think
> each one cost me 5 years of my life each.
> I'm wary of mixing chemicals, so I'm taking the time to gather as much
> information on this process first.  I'd even go so far as scrapping this
> FeCl and buying another gallon before screwing this up.
> Robert
> :)


I would prefer to start with a "clean" CuCl batch anyway, what reason  
would one have to keep that horrible "stain in a bottle" in it? I mean  
does the FeCl actually do any good? Also you won't be able to see etching  
progress with it, normal CuCl is transparent enough if you place a lamp  
behind the board (i found a small fluorescent light like sold for car  
repair works well).

Regenerating CuCl is fairly safe. I mean the HCl is dangerous, sure, but  
nothing like chlorine gas. Just wear adequate protection and have the  
proper respect towards the chemicals and you will be fine.

ST