Homebrew PCBs

Be very careful with the high strength H2O2. It can cause very serious
burns.
High strength H2O2 is used as a sterilizing solution in the manufacutering
and filling of food and milk cartons. A few drops is sprayed into the carton
to sterilize it and then the carton is flash heated to convert the H2O2 to
water, the the carton is filled and sealed

The H2O2 purchased at beauty supply stores for bleaching hair is about the
safe limit. In the US, 50 volume H2O2 requires a beautician's license to
purchase.

30 volume is excellent for pcb use.

Myc


On Tue, Jul 7, 2009 at 10:17 AM, Simao Cardoso <simaocardoso@...>wrote:

>
>
> On Mon, 2009-07-06 at 21:50 -0400, Donald H Locker wrote:
> > In the USA, I purchased some 30-volume (I think that's 15%) H2O2
> >
>
> 30 volume is 9%.
> In a pharmacy they said can mix the thing. But charge 20eur for mixing
> (plus the product) and that's more than i will pay for the thing. But i
> forget to ask if they have 'pure'.
>
> It also seems to exist some vacuum distillation process for 90% grade
> rocket fuel.
> http://www.tecaeromex.com/ingles/destilai.html
>
>
>  
>


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