RE: cyanotype soln. gone bad

Jude, In Ware's book on Cyanotype, he states that it should have a shelf
life of at least 6 months. He goes on to say that you can allow the solution
to sit in the dark for two days and then you can filter the solution. He
also talks about the use of Ammonium Dichromate to prevent that from
happening. Since you did use it, and still have a bluish solution now, I'd
store it in a dark place, filter it and give it a try. I have stored it
for well over a year and still had perfect prints.

Eric Neilsen Photography
4101 Commerce Street
Suite 9
Dallas, TX 75226
http://e.neilsen.home.att.net
http://ericneilsenphotography.com
 
> -----Original Message-----
> From: jude.taylor@comcast.net [mailto:jude.taylor@comcast.net]
> Sent: Monday, September 05, 2005 10:35 AM
> To: alt-photo-process-l@sask.usask.ca; alt-photo-process-l@sask.usask.ca
> Cc: Loris Medici
> Subject: RE: cyanotype soln. gone bad
>
> Yes, I did. It is the Photoformulary "New" Cyanotype Kit that I used and
> followed the directions accurately. "Nuts!" I will purchase another kit
> and try again. I think I will keep the stock jar in a larger outer
> container with some small dessicant packets to see if this helps.
>
> Thanks for confirming that the solution should have a comparatively long
> shelf-life.
>
> Judy
>
> --
> Judy Rowe Taylor
> Mukilteo, WA
> Art is a voice of the heart, a song of the soul.
> www.enduringibis.com
> jude.taylor@comcast.net or judyrowetaylor@enduringibis.com
>
>
> > Did you add Ammonium Dichromate when mixing the solution? AFAIK,
> > Ammonium Dichromate (besides increasing contrast, also) extends the
> > shelf life of the solution. I have a 18 months old solution that still
> > works well (AD was added when mixing).
> >
> > Regards,
> > Loris.
> >
> > -----Original Message-----
> > From: jude.taylor@comcast.net [mailto:jude.taylor@comcast.net]
> > Sent: 05 Eylül 2005 Pazartesi 07:57
> > To: alt-photo-process-l@sask.usask.ca
> > Subject: Re: cyanotype soln. gone bad
> >
> >
> > Thanks, but this is the new cyanotype, which I though was suppose to
> > have a longer shelf life. JT
> >
> > --
> > Judy Rowe Taylor
> > Mukilteo, WA
> > Art is a voice of the heart, a song of the soul. www.enduringibis.com
> > jude.taylor@comcast.net or judyrowetaylor@enduringibis.com
> >
> >
> > > Cyanotype solutions do not keep well. I mix fresh for every printing
> > > session.
> > >
> > > Dave in Wyoming
> > >
> > > ----- Original Message -----
> > > From: <jude.taylor@comcast.net>
> > > To: <alt-photo-process-l@sask.usask.ca>
> > > Sent: Sunday, September 04, 2005 8:10 PM
> > > Subject: cyanotype soln. gone bad
> > >
> > >
> > > > Greetings,
> > > >
> > > > This evening I got out my bottle of cyanotype (Ware's new cyano)
> > > > solution
> > > to coat and test some different papers. Much to my surprise my
> > > solution was deep green. I filtered it again and found there was also
> >
> > > some dark blue sludge in the bottle.
> > > >
> > > > The solution is only 2-3 months old, has been in a brown bottle with
> >
> > > > black
> > > lid tightly screwed on and kept inside a dark drawer that is only
> > > opened when I get out the bottle for a printing session. It was O.K.
> > > a few weeks ago (pale yellowish gree), so I am wondering if the higher
> >
> > > humidity around here has adversely affected the solution over time -
> > > when it has been opened to take out a few mls of the stock for use. I
> >
> > > use a dedicated syringe (which I wash and dry after each use) to draw
> > > from the stock bottle. After removing what I need for a session I do
> > put the stock bottle back in the
> > > dark drawer. Is it restorable or must I just start "from scratch"
> > again?
> > > Any clues as to what I might do to prevent this happening again; if it
> >
> > > is the humidity I do have "dehumidifier" on my list of items to
> > > purchase, though I wouldn't want to run it all the time! Maybe some
> > > of the "crystal stuff" in the drawer?
> >
Received on Mon Sep 5 10:27:55 2005