U of S | Mailing List Archive | alt-photo-process-l | Re: ferric oxalate

Re: ferric oxalate

Hi Eric,

Yes, that's what I was wondering about heating the water too much.  I was being on the safe side, so actually wasn't heating it enough, I think-- but that's good to know.  Thanks.

Saving money is good.  I would like to start mixing some of this from scratch-- well,  at least I think about mixing some of it from scratch.  It does make sense, but it also makes me a little nervous.

On Nov 10, 2008, at 6:38 PM, EJN Photo wrote:

It is REALLY quite easy to make from scratch. But it does take some time and does save a BUNCH of money. I also HIGHly recommend mixing the Potassium Oxalate from component chems and save even more money. It too is easy.  
Yes, you can heat the water too much. Heat will turn your ferric to ferrous before you have a chance to use it.  
Eric Neilsen Photo
4101 Commerce Street, Suite 9
Dallas, TX 75226
214 827-8301
SKype ejprinter

From: Diana Bloomfield [mailto:dhbloomfield@bellsouth.net] 
Sent: Monday, November 10, 2008 3:14 PM
To: alt-photo-process-l@usask.ca
Subject: Re: ferric oxalate
Oh, lord no. Not for a minute would I attempt to make anything from scratch-- except maybe a pound cake.
No, I'm just trying to mix up the ferric oxalate powder with distilled water and would like to know the amounts to use-- water to powder, and can you ever heat the water too much? Just having a hard time here, so wonder if I'm doing something wrong (as usual).
Thanks, Neal.
On Nov 10, 2008, at 4:06 PM, Neal Wilson wrote:

You are trying to make Ferric Oxalate from scratch? I've always been told this was a difficult process because of the compound's instability. There are detailed instructions at http://e.neilsen.home.att.net/FerricOxalate.html I've read again and again that this was something to buy rather make because of the time it takes and that the relative cost savings is neglible.

Did I misunderstand your question?


> Date: Mon, 10 Nov 2008 15:59:27 -0500
> From: dhbloomfield@bellsouth.net
> Subject: ferric oxalate
> To: alt-photo-process-l@usask.ca
> I'm trying to mix up some ferric oxalate, from powder, for use in pt/ 
> pd printing. Can someone detail their formula for me, for mixing 
> this thoroughly?
> Thanks.
> Diana