Homebrew PCBs

Hi guys,

I have some Ferric Chloride I did not store properly. I thought it was 
in an airtight container, but obviously not as the powder has changed 
colors in areas.  I am assuming this is because the powder took on 
some moisture.

I believe it will still be okay to use, but before I mix up the batch, 
I figure I would ask first if there are any problems using it?

Thanks

Chris

On Sun, 16 Jul 2006 15:13:36 +0200, lcdpublishing  
<lcdpublishing@...m> wrote:

> Hi guys,
> I have some Ferric Chloride I did not store properly. I thought it was
> in an airtight container, but obviously not as the powder has changed
> colors in areas.  I am assuming this is because the powder took on
> some moisture.
> I believe it will still be okay to use, but before I mix up the batch,
> I figure I would ask first if there are any problems using it?
> Thanks
> Chris


I don't think ferric chloride deteriorates even when fully mixed "just  
sitting there".

ST

Great to hear, thanks Stefan.



--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan" 
<stefan_trethan@...> wrote:
>
> On Sun, 16 Jul 2006 15:13:36 +0200, lcdpublishing  
> <lcdpublishing@...> wrote:
> 
> > Hi guys,
> > I have some Ferric Chloride I did not store properly. I thought 
it was
> > in an airtight container, but obviously not as the powder has 
changed
> > colors in areas.  I am assuming this is because the powder took 
on
> > some moisture.
> > I believe it will still be okay to use, but before I mix up the 
batch,
> > I figure I would ask first if there are any problems using it?
> > Thanks
> > Chris
> 
> 
> I don't think ferric chloride deteriorates even when fully 
mixed "just  

> sitting there".
> 
> ST
>

In a message dated 7/16/2006 8:24:25 A.M. Central Daylight Time,  
lcdpublishing@... writes:

but  before I mix up the batch, 
I figure I would ask first if there are any  problems using it?



almost CERTAINLY not!  Some salts DO attract moisture  from the atmosphere.  
This is called  "delequescense"


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