I have used D-9 successfully for producing extreme contrast process negatives on lithogrphic film.
The only substitution I made mixing it was to use 2.5g of Potassuim Iodide, in lieu of the 22.5g of Potassium Bromide
I have a surplus of KI (about 1kg), and use the bromide stocks I buy more often to warm print developers.
I had a reason to try a D-85 I mixed back in mid 2011 last week.
It was pooped out. I have half of the dead d-85 now in reserve. I am planning to drop in fresh developing agent to see if that brings it back into service.
The D-9 that I used last week was mixed in mid 2011 as well, and it's A side worked just fine.
I had no reason to doubt the B side going off - nothing organic to die in it, and not likely to grow any mold either.
Any thoughts on scratch formulas that resemble the commercial offerings, like Nova Lith, Moresch 5 or Maco Lith?
Originally Posted by Bob Carnie
Sorry could it be a problem?I don't understand!
Have patience grasshopper, maybe a wise chemist will come on and answer the golden question.
Originally Posted by peters8
Search ebay "diethylene glycol" ,it is a heating fuel.
But mixing HQ and diethylene glycol is surely very hazardous except in a lab with a ventilator fan cupboard, even if there is no other ingedient in part A.
Propylene glycol would serve the same purpose (preventing oxidation), but aside from that, there are very likely ingredients that aren't listed in the MSDS.
Originally Posted by Alan Johnson