I've got the formulas for C-22 (as published in the British Journal of Photography, or so the original post claimed) tucked away on my hard disk. I lack some of the ingredients, though, and I'd prefer not to go buy them just for this one roll of film. Note that it's possible to develop C-22 film as if it were B&W film, so that might be worth considering. Here, though, is the C-22 formula that I've got, as posted to the rec.photo.darkroom Usenet newsgroup by Francis A. Miniter on July 19, 2007:
Developer (final pH 10.5 to 10.6)
Benzyl Alcohol 8.5 ml
Sodium Metaborate (Kodalk) 35.0 g
Trisodium Phosphate, crystalline 25.0 g
Sodium Sulfite, anhydrous 2.5 g
Potassium Bromide 1.5 g
Potassium Iodide 0.006 g
CD3 7.8 g
Water to make 1000 ml
Stop Bath (final pH of 4.3 to 4.7)
Glacial Acetic Acid 20.0 ml
Sodium Sulfite, anhydrous 10.0 g
Water to make 1000 ml
Hardener (final pH of 10.4 to 10.8)
Formalin (35-40% solution) 20.0 ml
Sodium Carbonate, anhydrous 10.0 g
Water to make 1000 ml.
Note: Formalin is hard to dissolve and requires extended heating to get even an 18% solution. Purchase of formaldehyde solution and recomputation of required amount is recommended.
Bleach (pH 6.6 to 7.0) NOTE: E3/E4 Bleach may be substituted and acts faster
Potassium Nitrate, crystalline 25.0 g
Potassium Ferricyanide 20.0 g
Potassium Bromide 8.0 g
Boric Acid 5.0 g
Borax, crystalline 1.0 g
Water to make 1000 ml
Fixer (pH 4.4 to 4.6)
Ammonium Thiosulfate, crystalline 120 g
Potassium Metabisulfite 20 g
Water to make 1000 ml
Keeping Time:
Developer with CD3 two weeks
Developer w/o CD3 6 months
PROCESS
Color Developer 14 min. @ 75.0 F +/- 0.5 degrees
(optional 20 sec. rinse on way to stop bath)
Stop Bath 4 min @ 68 - 75 F
Hardener 4 min @ 68 - 75 F
Normal Lighting may be resumed.
Wash 4 min @ 68 - 75 F
Fixer 8 min @ 68 - 75 F
Final Wash 8 min @ 68 - 75 F
Working Capacities
Developer, Stop Bath 300 sq. in. per liter
Hardener, Bleach, Fixer 600 sq. in. per liter
Agitate first 15 seconds then 5 seconds per minute. Contrast is varied by raising or lowering KBr in developer. If developed separately and sequentially, subsequent roll should get additional 20-30 seconds each.