Re: Oxalate ferric
- To: Philippe Berger <mineurdecharbon@skynet.be>, alt-photo-process-l@usask.ca
- Subject: Re: Oxalate ferric
- From: Erich Camerling <e.camerling@tiscali.nl>
- Date: Sun, 24 Aug 2008 11:56:41 +0200
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Philippe,
Read the "procedure for making ferric oxalate "
Change "200 g.of ferric ammonium sulfate" in "25 g. FeCl3 (or 40 g.
FeCl3.6 H2O)"
Change "Add 100 ml of strong ammonium hydroxyde" in "add ammonia"
Change "now take a 1 foot.....etc..." in " use a coffee-filter holder
with a coffee-filter"
and make your own FO with the" Sullivan method"
Erich.
Philippe Berger schreef:
Erich,
Thank you it is very intéressant
Are you possible to describe the process with a little texte with the
quantité of chemical
2 FeCl3 + 6 NH4OH --> 2 Fe(OH)3 + 6 NH4Cl
2 Fe(OH)3 + 3 H2C2O4 ---> Fe2(C2O4)3 + 6 H2O
162 g. FeCl3 --> 107 g. Fe(OH)3
107 g. Fe(OH)3 needs 87 g. H2C2O4
25 g. FeCl3 = 40 g. FeCl3.6 H2O
Thank you it is very interesting but I did not understand everything
Know you write the successive stages with chemicals and quantities of
chemicals
Thank you for your help
Philippe