Homebrew PCBs

On Sun, 21 Jan 2007 16:34:09 +0100, Len Warner <novost@...> wrote:

>
> Also remember that H2O2 is de-stabilized by metal ions
> and other particulate matter, so (a) it isn't a good idea
> to store it in another bottle than it was supplied in

Well, it makes PE bottles brittle from the inside. I store it in glass  
now. Should be very clean though.
There are special caps with safety pressure relief, although i was told by  
the shop they are not required for H2O2.

I'm thinking to get some medical luer-lock plastic valves and install one  
to a bottle cap, for easier dispensing.

> and
> (b) don't expect to part-used HCl-H2O2 to have any
> shelf life at all.


That's true.

ST