U of S | Mailing List Archive | alt-photo-process-l | RE: MEANT SODUIUM CITRATE pH question

RE: MEANT SODUIUM CITRATE pH question



Thanks Sandy, Eric, Don and others who replied.
		CHEERS!
			BOB

-----Original Message-----
From: Sandy King [mailto:sanking@clemson.edu] 
Sent: Tuesday, March 20, 2007 3:09 PM
To: alt-photo-process-l@usask.ca
Subject: Re: MEANT SODUIUM CITRATE pH question

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
>
>  Please check my website: http://www.bobkiss.com/
>
>"Live as if you are going to die tomorrow.  Learn as if you are going to
>live forever".  Mahatma Gandhi