Homebrew PCBs

No part of a PCB manufacturing contains carbon, so it's
unlikely that CO can be produced other than by burning
something.
The only burning you mention are the furnace and the car.
Check them. A remote chance is that some hidden electrical
conductor might be 'almost' burning it's duct... fire
hazard! although I believe it would produce more Cl than
CO.



--- Stefan Trethan <stefan_trethan@...> wrote:

> This happens when you use way too high concentrations of
> HCl or both.
> If the CuCl etchant is maintained at normal levels, and
> covered when
> not in use, there is no corrosion on steel nearby.
> 
> It's well worth mentioning, so that others may avoid the
> tedious work
> of removing rust, but i doubt it would do damage to a CO
> detector
> which likely isn't even in the same room.
> 
> ST
> 
> On Jan 23, 2008 11:03 PM,  <kevinmwolf@...> wrote:
> >
> >  Ed,
> >
> > I have experienced some weird situations when using
> Muriatic acid and hydrogen peroxide to etch. The first
> couple of times I etched, EVERYTHING metal in the room
> that I used oxidized over the next couple of days. So
> yes, there is a small chance that etching can damage
> nearby electronics. However, I would call your local FD
> (non-emergency #) and have them check the house for CO
> levels.
> >
> > Best of luck,
> > -Kevin Wolf
> >



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