Agreed, glass is far better but... 31% HCl is sold in the US
(probably elsewhere) in plastic gallon bottles. I've had one sitting
in my basement from when I finished my remodel and they acid washed
the brick. Its about 1/2 full and no problems (no residue, container
was fine). SG test showed it to have the correct SG. My remodel was
finished 3 years ago. The recycle logo (2) on the bottle says it HDPE.
--- In
Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@g...> wrote:
>
>
> >> Note that this brew attacks some plastics - I had left 2 air "stones"
> >
> > :( is PET (or LDPE) OK?
> >
>
> For some time (months) yes, see my other post, the HCl will form
crystals
> on the outside in a year or so. glass is better.
>
> ST