Re: Ferric ammonium citrate

George L Smyth (GLSmyth@ari.net)
Tue, 18 Feb 1997 22:11:45 -0500

Richard Sullivan wrote:
>
> I made a batch with my old favorite formula and got a heavy amount of
> yellow precipitate in the bottom of the beaker. So like a dumb dumb I
> filtered it off. (It's a movie called "Laurel and Hardy Do
> Photography") I made a print. Well I tried, and just got a faint
> image.

This is interesting and I'm wondering what combination of ingredients
you were using. I've gotten a dark crud (so this may well be something
completely different) after the solution has aged a bit. Leaving it in
caused badly uneven development. Filtering it out made the difference.

george

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