[alt-photo] Re: Anyone using sodium citrate as DOP pt/pd developer?

[BOB KISS]

DEAR LORIS,
	I knew I would forget something!  I use approximately a 10:1 drop
ratio of palladium to platinum.  
		CHEERS!
			BOB

-----Original Message-----
From: alt-photo-process-list-bounces at lists.altphotolist.org
[mailto:alt-photo-process-list-bounces at lists.altphotolist.org] On Behalf Of
BOB KISS
Sent: Tuesday, January 10, 2012 8:35 AM
To: 'The alternative photographic processes mailing list'
Subject: [alt-photo] Re: Anyone using sodium citrate as DOP pt/pd developer?

DEAR LORIS,
	Please note the following provisos which may affect the results:
1) I use either COT 320 or Crane's Platinotype because I put some in
inventory before it was discontinued.  
2) I use a NuArc 26-1KS plate burner.
3) Anything I have forgotten to tell you and will fill in later!  ;-))

	I started my pt/pd printing using sodium citrate because it was
readily available here in Barbados.  Even heating it up to 38 C I found that
it produced relatively neutral prints (slightly warm) on either paper.  
	As soon as I switched to Pot Ox dev, I found my prints MUCH warmer,
especially at 38 C.  Further, I found the coated paper required less
exposure to produce similar densities, i. e. it was "faster".  
	I am home with a serious flu today so I suspect that I have
forgotten other important things but this should get the thread started.

		CHEERS!

			BOB  

-----Original Message-----
From: alt-photo-process-list-bounces at lists.altphotolist.org
[mailto:alt-photo-process-list-bounces at lists.altphotolist.org] On Behalf Of
Loris Medici
Sent: Tuesday, January 10, 2012 7:18 AM
To: The alternative photographic processes mailing list
Subject: [alt-photo] Anyone using sodium citrate as DOP pt/pd developer?

Hi all,

 

Is there anyone using sodium citrate as DOP pt/pd developer? If yes, at what
strenght?

 

How different is sodium citrate compared to say... potassium oxalate? (In
terms of hue, contrast, grain ect...)

 

TIA,

Loris.

 

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