Re: TI-H: PCB


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Re: TI-H: PCB




I like to melt things with nitric acid and sulfuric acid

and you have got to love hydroflouric acid, it can eat through glass, yet
wont even harm flower pollen

joe

Sam Camp wrote:

> >>You can even etch directly with high molar hydrochloric acid, but
> >only
> >>do this if you're a psycho and you're outside because it produces a
> >>ton of poisonous chlorine gas (i.e. it can kill you if you breathe
> >>it).  But, i've heard you can etch an entire board in under 2 minutes
> >>that way.
> >
> >Cool! :) In chemistry the instructor let us play with the 30 molar
> >HCL once.  Wicked stuff it is. (ok, we wern't playing with it (much),
> >just diluting it for the other students).
> >
>
> Would toilet-bowl cleaner be concentrated enough, I doubt it, but no
> sense in not asking.  :)
>
> Sam
>
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