At first i was going to say you must be mistaken, but then i
remembered a few years ago i actually kept this etchant in the
described bottle. You have a better memory than myself it seems.
Now i just keep it in the etching tank, which is by now second
generation already, made of 4mm glass with a phenolic board lid. The
lid sits on a rubber surface, to form a bit of a seal (but it's not
really airtight). To keep dust out (and maybe the fumes at bay a
little) i use a large plastic container over the whole setup, as a
lid. A similar container is underneath as a emergency catch basin so
this forms a neat closed box.
ST
On Mon, Jan 5, 2009 at 6:57 PM, Wayne Topa <linuxone@...> wrote:
> Stefan, was it you who kept your CuCl in a double capped bottle with
> small holes in each
> "plastic?" cap to slow down the evaporation of the H2O2? And do you air
> bubble the
> solution?