> Date: Mon, 29 Sep 2014 21:47:51 -0400
> From: [email protected]
> To: [email protected]
> Subject: Re: CS>Something interesting for the chemist or physicist?
> 
> I'm finding your experience very interesting, though I don't
> yet have any answers for you. I am suspecting that some
> trace of salt or other chloride contaminated your solution,
> but I don't have any explanation for the location of the
> deposit. Silver chloride is a white, insoluble substance.
> It is also very light sensitive.
> It is the active material in photographic film.
## G'day John.It is very unusual for me to have one of my batches turn milky.  
The only thing I can think of is perhaps I acquired a bad batch of DW?  I used 
to document all aspects of each batch I produced once, but I stopped doing that 
a few years ago.  However, I do recall allowing this batch, and one or two 
successive batches to brew for one hour before removal of electrodes to clean 
them.  I normally remove electrodes each and every 30 minutes regardless, but 
for these batches I didn't bother as nothing develops on the electrode for at 
least an hour so I decided to leave the electrodes for one hour.  I do notice a 
second batch is turning milky as well.  The batch in question is now taking on 
a pinkish hue, it must still be stabilising, even after one month in storage.  
I've set it aside and will make more observations over time.  Me thinks I 
should not deviate from my usual practice as I have never had this happen since 
the very very early days of my involvement with this stuff.
I do know there are several possible reasons for a dark spot to develop on the 
bottom of the brew vessel, i.e. electrodes too close to bottom, leaving 
electrodes in too long before removal, not incorporating some form of stirring 
method where larger volumes are concerned to name a few of which I am aware of. 
 But to have this dark spot appear whilst in storage, and repeated appearance 
is a new one on me?  All my solutions normally remain clear and transparent no 
matter how long it is in storage, occasionally I may get a batch taking on a 
yellowish colour, nothing I'm concerned about with that though, so long as it 
*stays* clear and transparent, and they always have.
> 
>   What do the letters, "TE" represent?  I am also not
> familiar with the units "KCL uS".  I have a meter that reads
> out microsiemens per centimeter (uS/cm).
## TE=Tyndal Effect, the refraction of light on particle content.KCl is 
Potassium Chloride which I believe is one of the solutions this meter was 
calibrated in.  The HM Digital Com-100 EC/TDS/TEMP meter.
> 
> I am presently experiments with silver water made with
> various electrical waveforms and am seeing solutions that
> look quite different, for the same conductivity
> measurements.  I am assuming, so far that this is indicating
> various ratios of ionic and colloidal silver, but it might
> also just be an indication of various slight contaminations.
> 
> On 09/29/2014 08:38 PM, Neville wrote: