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Re: [Homebrew_PCBs] Re: Etchiing with CuCl2 + O2 ?

2005-02-21 by Adam Seychell

Stefan Trethan wrote:
> On Tue, 22 Feb 2005 09:22:11 +1100, Adam Seychell  
> <a_seychell@...> wrote:
> 
> 
>>pH will not give reliable acid molarity simply because HCl is a strong
>>acid and pH will be very low for a very wide range of acid
>>concentrations. Even if pH would give you measurement, pH electrodes are
>>a LOT more expensive and cumbersome to use than simple eye dropper and
>>NaOH.
> 
> 
> 
> someone asked for a probe to automatically measure titration endpoint.
> Of course without titration ph won't work.

Oh, in that case, I think a pH probe would be a very accurate way to 
determine the end point. Its just complete overkill for our purposes.

> 
> I use eyedroppers and it is really quite simple.

Agreed.

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