Yes, anything below about pH 6.5 works for me with sodium citrate.
Sandy
At 2:18 PM -0400 3/20/07, BOB KISS wrote:
DEAR DON,
I sit corrected. I DO use Sodium Citrate, NOT Potassium Citrate.
Senior moment! I was thinking Potassium Oxalate when I was typing Sodium
Citrate. Sorry!
******So, do others agree that pH 6 to 7 are good for SODIUM citrate PT/PD
Dev?
CHEERS!
BOB
-----Original Message-----
From: Don Bryant [mailto:dsbryant@bellsouth.net]
Sent: Tuesday, March 20, 2007 1:19 PM
To: alt-photo-process-l@usask.ca
Subject: RE: pH question
Bob,
I don't use Potassium Citrate but I use Sodium Citrate for kallitype
printing. For that I adjust pH < 7 and > 6 with citric acid.
Don Bryant
-----Original Message-----
From: BOB KISS [mailto:bobkiss@caribsurf.com]
Sent: Tuesday, March 20, 2007 1:06 PM
To: alt-photo-process-l@usask.ca
Subject: RE: pH question
Anyone???
CHEERS!
BOB
-----Original Message-----
From: BOB KISS [mailto:bobkiss@caribsurf.com]
Sent: Tuesday, March 20, 2007 9:17 AM
To: alt-photo-process-l@usask.ca
Subject: pH question
DEAR LIST,
At what pH should I keep my Potassium Citrate developer for pt/pd?
Eric Neilson suggested that I keep my Pot Ox dev at between 5 and
5.5 with small additions of oxalic acid when necessary. I can add small
amounts of citric acid to my Pot Cit dev but I am hoping to know what the
best aim pH is for best development.
Thanks in advance...
CHEERS!
BOB