Homebrew PCBs

----- Original Message ----- 
From: "Stefan Trethan" <stefan_trethan@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Friday, June 27, 2008 2:13 PM
Subject: Re: [Homebrew_PCBs] Re: Ferric Chloride


> Which is of course a highly likely combination someone making PCBs
> might want. I'm sure i have bought those two chemicals together in the
> past. Acetone is good for board cleaning, after all, and one of the
> three chemicals i need for making PCBs.

I think you might have problems now.

I remember making acetone at school from alcohol, so I wouldn't need to buy 
it if I wanted to make bombs. The reaction did get out of control though, 
and all the glassware got blown out of the top of the flask together with a 
green fountain of alcohol, sulphuric acid, copper filings and acetone. The 
whole lot hit the ceiling and bits of glass, acid etc. rained down on us. 
The green stain was still there when I left a year later. 8-)

Leon