[alt-photo] Re: VDV

[francis schanberger]

Could be the super saturated silver nitrate in solution which I see as I
mix in the last of the silver nitrate at a less than leisurely rate. If it
is, it will go back into solution after 48 hours or there abouts.  I always
draw from the clear green liquid above any sediment after letting it sit
for a couple of days to ripen.

Did your source for distilled water change this time around?

-francis

On Wed, Oct 10, 2012 at 6:54 PM, Ken Sinclair <photo1 at telusplanet.net>wrote:

> HI All
>
> Today, I experienced something that I have not 'met' before.
>
> On mixing up a fresh solution for VDB printing, just as the last of the
> silver nitrate volume
> was being (all so very slowly) into the 'mix' of FAC and Tartaric acid, I
> seemed to get a very light
> green precipitate that has now slowly dropped to the bottom of my brown
> bottle.
>
> I have NEVER seen this before. Could someone offer an explanation?
>
> Do I have to 'start' all over again?… or will the light green precipitate
> re-dissolve with time?
>
> TIA
>
> Ken
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-- 
francis schanberger

www.francisschanberger.com