[pure-silver] Re: 'Ripening' procedure for developer?

  • From: hksvk <hksvk@xxxxxxxxxxx>
  • To: <pure-silver@xxxxxxxxxxxxx>
  • Date: Sat, 05 May 2007 09:22:47 -0400

Thanks to all of you who have responded generously to this thread. Now,
trying to twist it back to the original question:

Suppose a standard published hydroquinone/metol film or paper developer is
built from its chemical constituents (not from powder in a sealed package)
and brought to 68 or 70 degrees F. in a cold water bath within 30 to 60
minutes.

Suppose a second identical mixture is allowed to sit in a pyrex flask
overnight, covered with a watchglass, comes to the same (ambient) temp on
its own, and is considered to be 'ripened' after 12-18 hours.

Questions: Will these two solutions have different chemical properties? Will
film or paper respond differently to these two solutions in any significant
perceptible way?

Thanks,
Harry.

=============================================================================================================
To unsubscribe from this list, go to www.freelists.org and logon to your 
account (the same e-mail address and password you set-up when you subscribed,) 
and unsubscribe from there.

Other related posts: