Eric,
I routinely add oxalic acid to my ferric at a rate of 4.8 gm per 100 ml.
The pH of this solution is in the 1.5 to 1.7 range.
Kerik
> -----Original Message-----
> From: Eric Neilsen [mailto:e.neilsen@worldnet.att.net]
> Sent: Thursday, August 11, 2005 8:54 AM
> To: alt-photo-process-l@skyway.usask.ca
> Subject: RE: Pt./Pd. question acid pre-soak
>
> Kerik, How much "extra" oxalic acid did you try adding to the
> ferric when you ran those test? And were you able to check
> the pH of the solution after adding it?
Received on Fri Aug 12 00:21:42 2005
This archive was generated by hypermail 2.1.8 : 09/01/05-09:17:19 AM Z CST