[alt-photo] Re: Fluka / Sigma-Adrich Ammonium Iron(III) Citrate - contains Fe(II)!!!

[John Brewer]

Hi Loris,

Mine has a batch number of 7317/6y but has been repackaged by my chem co for
me, (into 100g tubs), who order direct from Fluka/Sigma. There's no lot # on
my labels.

J.

-----Original Message-----
From: alt-photo-process-list-bounces at lists.altphotolist.org
[mailto:alt-photo-process-list-bounces at lists.altphotolist.org] On Behalf Of
Loris Medici
Sent: 27 June 2010 14:49
To: The alternative photographic processes mailing list
Subject: [alt-photo] Re: Fluka / Sigma-Adrich Ammonium Iron(III) Citrate -
contains Fe(II)!!!

Hi John,

Is it the same stuff? There are a couple of different AFC in Sigma-Aldrich
catalog... And, if it's the same product indeed, what is the Lot # of yours?
(See the link my my original message...)

I don't know for how much they were keeping it in stock. OTOH, to my
knowing, powdered AFC keeps indefinitely when protected from moisture (and
UV light perhaps)...

Maybe I should have brought another version... Anyway, I'll just have to
find to how I can make it work w/o problems I guess!

Regards,
Loris.


On 27.Haz.2010, at 16:26, John Brewer wrote:

> That's interesting Loris. I've just got some from Sigma (UK) and mine is
> fine, (used for cyanos and VDB). I wonder if yours has been hanging around
a
> bit?
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