Homebrew PCBs

On Tue, 2009-04-07 at 21:22 +1000, Adam Seychell wrote:

> Most people who produce ammonium persulfate would do so by
> electrolysis 
> at cold temperatures with platinum anode at high current density in a 
> solution of high concentration of ammonium sulfate. The solubility of 
> persulfate is significantly lower than sulfate and allows separation. 
> High anode current densities increase persulfate/oxygen ratio since
> some 
> water electrolysis is unavoidable.
> 
> I don't think any the chemical reactions you describe would make 
> persulfates.
> 

Adam, very thanks, you cleared my doubts on this.
Still, there is 2 other questions that I looking for any comment. 

Is ammonium persulfate reusable? like sodium persulfate or cupric
chloride.

Is possible to copper electroplate pcb boards in a sodium persulfate
bath?? Using copper anodes and when the bath is copper saturated. 
This last question is strange, but is why i wish to have it this bath,
if could be possible a 2 in 1.


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