Homebrew PCBs

I'm sure some whiz can calculate it exactly, i'm no good with math so
i woud try to add an indicator and gradually add the baking soda.

If you have no indicator at hand i'm told cranberry juice will work.
Also i recently discovered radish juice (from the red outer skin) is a
nice indicator, you can guess when i discovered that...


ST



On Thu, May 21, 2009 at 2:53 AM, perri.anthony <perri.anthony@...> wrote:
>
> So I mixed a solution of Muriatic Acid (1/2 cup) & Hydrogen Peroxide (1
> Cup) to etch a board. It worked very well but now I am trying to figure
> our how much baking soda it would take to neutralize that solution so it
> can be safely disposed of.
>
>
>
> thanks
>
> Anthony
>
>