[alt-photo] Re: Clerc and am fe citrate
Jacques Kevers
jacqueskv at gmail.com
Tue Mar 6 16:18:08 GMT 2012
Alberto,
>From Clerc, L.P. (1947) "La Technique Photographique" (IVth edition):
footnote p 738:
green : Fe2(C6H5O7)3(NH4)3 = 733
brown: (OH)3Fe2(C6H5O7)2H2(NH4), 3 H2O = 615
Best,
Jacques
2012/3/4 Alberto Novo <alt.list at albertonovo.it>
> I am looking for the chemical definition brown ammonium ferric citrate
> given by Clerc. I remember a footnote in:
> Clerc, L.P. (1950) "La Technique Photographique"
> 5th Ed, tome II, Publications photographiques et cinematographiques Paul
> Montel, Paris V, 1950, pp.816-817
> I have had the oppportunity of taking some notes about the empirical
> formula of the green form, but unfortunately I did not save the information
> about the brown one.
> Now I nave not the opportunity to look at Clerc anymore. May you help me?
> Alberto
> www.grupponamias.com
> www.alternativephotography.**com/wp/photographers/rodolfo-**namias-group<http://www.alternativephotography.com/wp/photographers/rodolfo-namias-group>
> ______________________________**_________________
> Alt-photo-process-list | http://altphotolist.org/**listinfo<http://altphotolist.org/listinfo>
>
More information about the Alt-photo-process-list
mailing list