[pure-silver] Re: Pyro in a Jobo Processor
- From: "John Black" <jblack@xxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Fri, 18 Mar 2005 11:59:39 -0500
> The main source of metal impurities would be the sodium sulfite itself
> rather than the water used to make the solution. Iron and copper are
> the metals usually implicated in the oxidation.
>
> A well stoppered bottle to keep the oxygen from the solution is probably
> the best solution
Good point... I have had no problems so far keeping it as a saturated
solution in glass bottles with white rubber lined phenolic caps. But when in
my developer at 5gm/L it degrades within about a month, even in the presence
of EDTA.
JB
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