From: Clay Harmon (wcharmon@wt.net)
Date: 08/20/02-09:36:59 PM Z
Don:
I went through this same problem with the list a few months ago, and
subsequently have mixed in part C very slowly as per the advice I received.
The batch I made last Sunday was pretty much clear by Monday evening, with
just a little sludge. Yours will probably be fine tomorrow.
Clay
on 8/20/02 10:29 PM, Don Bryant at dsbryant@mindspring.com wrote:
> Dear List,
>
> Tonight I've mixed a batch of VDB solution using the following formula:
>
> Solution A:
> Ferric Ammonium Citrate 9.0 gm
> Distilled Water 33.0 ml
>
> Solution B:
> Tartaric Acid 1.5 gm
> Distilled Water 33.0 ml
>
> Solution C:
> Silver Nitrate 3.8 gm
> Distilled Water 33.0 ml
>
> After weighing and mixing each solution (under safelights) I slowly mix A
> and B throughly. Then I add part C slowly to the first mix while stirring.
> The result is a milky green solution which I've poured into a storage
> bottle. After filling the container a large amount of percipitate rests on
> the bottom of the bottle. I don't recall seeing this in previous mixes. Is
> this normal? Will the sludge dissolve?
>
> Thanks,
>
> Don Bryant
>
>
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