RE: Ferrous to Ferric Oxalate [was Re: patents]

Mike, Do you have a way to measure Sp Gr? There is a chart in ... that's
right, Dick Steven's book on the Kallitype, that shows the Sp Gr and the %
equivalence.

What strength is your peroxide?

Eric Neilsen Photography
4101 Commerce Street
Suite 9
Dallas, TX 75226
http://e.neilsen.home.att.net
http://ericneilsenphotography.com
 

> -----Original Message-----
> From: Loris Medici [mailto:mail@loris.medici.name]
> Sent: Wednesday, February 15, 2006 10:50 AM
> To: alt-photo-process-l@sask.usask.ca
> Subject: RE: Ferrous to Ferric Oxalate [was Re: patents]
>
> Ok, thanks. I'd like to hear about the results.
>
> Regards,
> Loris.
>
> -----Original Message-----
> From: Michael Koch-Schulte [mailto:mkochsch@shaw.ca]
> Sent: 15 Şubat 2006 Çarşamba 18:36
> To: alt-photo-process-l@sask.usask.ca
> Subject: Re: Ferrous to Ferric Oxalate [was Re: patents]
>
>
> It doesn't mention the final strength. But you might be able to
> extrapolate that info from the amounts of ferrous oxalate and oxalic
> acid added to the water. I would say the strength is over 20%. Maybe
> more.
>
> The components (by bad luck) I seem to have on hand: I erroneously was
> sent ferrous oxalate from my supplier, I have the oxalic acid, I have
> water, and I have hydrogen peroxide although not 25% (I'm going to try
> to adjust this by lowering the H2O requirement. I'm going to give it a
> try and I'll let you know.
>
> ~m
>
> ----- Original Message -----
> From: "Loris Medici" <mail@loris.medici.name>
> To: <alt-photo-process-l@sask.usask.ca>
> Sent: Wednesday, February 15, 2006 10:25 AM
> Subject: RE: Ferrous to Ferric Oxalate [was Re: patents]
>
>
> Two questions Michael:
>
> What is the strenght of the final solution?
>
> Are the named compounds easily obtainable?
>
> TIA,
> Loris.
Received on Wed Feb 15 22:24:50 2006