RE: Is there a chemist in the house?

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From: Eric Neilsen (e.neilsen@worldnet.att.net)
Date: 11/17/02-09:12:18 PM Z

Temi, As the "creator" of the Ziatype has spoken I feel that I need not
add to it : ) but I will. If you are making Ziatypes, than No, it is a
part of the process. If you are making platinum/palladium prints than
yes, with this reservation. Water is only a very weak developer for DOP
or regular platinum/palladium prints. You can see the image appear on
your paper with FO but it will not be a strong image. It varies with
humidity and will vary will different ferric oxalates.

Water is not a recommended developer with DOP platinum prints.

There are a whole host of developers for Noble printing ( my term for
the family of platinum/palladium printing). Some printers use a
combination of AFO and FO in the coating solutions. It is really quite
open to playing around with combinations. You will find that some are
more stable than others; a longer shelf life. If you do use both AFO
and FO together, than it would be best to use a highly active developer,
such as Potassium Oxalate or Ammonium Citrate,... Remember that with
making combination, some work better very subjectively so have fun and
play.

How ever you do it, do it safely. ; )

Eric Neilsen Photography
4101 Commerce Street
Suite 9
Dallas, TX 75226
http://e.neilsen.home.att.net
http://ericneilsenphotgraphy.com

-----Original Message-----
From: Temi [mailto:Temi@TemiOriginals.com]
Sent: Sunday, November 17, 2002 5:32 AM
To: alt-photo-process-l@sask.usask.ca
Subject: RE: Is there a chemist in the house?

Eric, if I use these chemicals in the Ziatype process, will both still
allow for a printing-out-process without using a developer? Temi

-----Original Message-----
From: Eric Neilsen [mailto:e.neilsen@worldnet.att.net]
Sent: Saturday, November 16, 2002 10:52 PM
To: alt-photo-process-l@sask.usask.ca
Subject: RE: Is there a chemist in the house?

You will get slightly different results, but with platinum/palladium
printing quite so. There are several variations of ferric oxalate that
are interchangeable. They are not identical formula.

Eric Neilsen Photography
4101 Commerce Street
Suite 9
Dallas, TX 75226
http://e.neilsen.home.att.net
http://ericneilsenphotgraphy.com

-----Original Message-----
From: Temi [mailto:Temi@TemiOriginals.com]
Sent: Saturday, November 16, 2002 9:01 PM
To: alt-photo-process-l@sask.usask.ca
Subject: Is there a chemist in the house?

Hello - My question is this - Are ferric oxalate and ammonium ferric
oxalate interchangeable when preparing an emulsion? I believe the answer
is that they are not but can you verify this. Thanks for your help. Temi

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