On Sat, 19 May 2007 08:08:10 +0200, Adam Seychell <a_seychell@...> wrote:
> > True. The HCl fumes from CuCl etchants are very corrosive. Although > FeCl3 does have a tiny bit of HCl, its fumes are much less.
HCl has a very low boiling point. Even under the boiling point fuming is much increased (look at a cup of tea).
I once tried to heat a tiny amount of CuCl in a small glass to compare to room temperature, but when i moved my head over the glass i soon dismissed the idea.