Charles
I reason i suggested looking at some other recipes was that a reference in
the correspondence to 27 g in 100ml.
Terry
In a message dated 10/4/06 6:29:01 pm, cryberg@comcast.net writes:
> Loris and Terry,
> Thanks. My FAC is from Photographer's Formulary rather than B&S. I'm
> relieved to know someone else gets a precipitate since it is NEVER
> mentioned. The first batch I used tap water and thought that was the cause.
> The second batch I used distilled so I thought I had added the silver
> nitrate too quickly. The third batch was where I noticed the sudden onset
> of the precipitate. The fourth which I'm currently using had very little
> because I stopped adding the silver nitrate solution.
> I don't have Keepers of the Light, but a check of half a dozen sources
> turns up a pretty consistent set of figures. The FAC is always 9 g in a
> total of 100 ml finished solutions. The tartaric acid is always 1.5 g. The
> silver nitrate is often 3.8 g, often 4 g. From my experience the 3.8 might
> be a better figure--I'll measure the volumn of solution I use very carefully
> next time.
> Charles Portland
>
>
Received on Mon Apr 10 13:10:06 2006
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