Re: Ferric Oxalate
Richard Sullivan (richsul@roadrunner.com)
Sun, 03 Aug 1997 10:58:43 -0600
Something I didn't mention in my previous post was that one can make a 54%
(and probably higher) ferric oxalate solution from powder. To do this put
54 gm of powder ferric oxalate in a beaker add water to make 100 ml. Now
slowly heat and add small quantities of EDTA tetra sodium until it is
dissolved. This can be done on a hotplate or by zapping in a microwave.
I've not fully tested what a superstrength F.O will do for you. I made a
double strength sodium palladium solution and used the double strength F.O.
years ago and got a normal looking print. I thought that all I was doing
was wasting precious metal.
Dick Sullivan
Bostick & Sullivan
PO Box 16639, Santa Fe
NM 87506
505-474-0890 FAX 505-474-2857
http://www.bostick-sullivan.com