Bob, I have a slightly different chemical compound that I'm using with
50/50 blends. It doe shave quite an effect. It is Platinic Acid.
Available from Engelhard and is different in that it is H2 instead of Na2.
I can send you a yet to be completed study that is in Excel form on this
contrast agent. I think you'll find it useful.
Eric Neilsen Photography
4101 Commerce Street
Suite 9
Dallas, TX 75226
http://e.neilsen.home.att.net
http://ericneilsenphotography.com
> -----Original Message-----
> From: bobkiss@caribsurf.com [mailto:bobkiss@caribsurf.com]
> Sent: Friday, December 05, 2003 10:14 AM
> To: alt-photo-process-l@sask.usask.ca
> Subject: NA2 For Pt/Pd blends
>
> DEAR LIST,
> I have saved the recommended dilutions and numbers of drops for
> using Na2 as a contrast controling agent for pure Palladium printing.
> I usually use a Pt to Pd drop ratio of 1:3. Eg 4 drops Pt plus 12
> drops Pd plus FO. My questions:
> 1)Does anyone on the list have experience using Na2 as a contrast agent
> with Pt/Pd blends?
> 2) Does it work?
> 3) Would you be willing to share your data?
> Thanks in advance!
> CHEERS!
> BOB
Received on Fri Dec 5 23:43:42 2003
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