✔ 最佳答案
Kodak Developer Formula D19 produces higher than “normal” contrast and keeps well.
You will not succeed in making a power but you can easily make a liquid formulation.
Water 50⁰C about 120⁰F 500ml
Elon (Metol) 2g
Sodium Sulfite (anhydrous) 90g
Hydroquinone 8g
Sodium Carbonate (monohydrated) 52.5g
Potassium Bromide (anhydrous) 5g
Add cool water to make 1 liter
Use undiluted at 20⁰C / 68⁰F in tank 6 minutes in Tray 5 minutes
Kodak F-5 Acid Hardening Fixer
Water 50⁰C about 120⁰F 600ml
Sodium Thiosulfate (Hypo) 240g
Sodium Sulfite (anhydrous) 15g
Acetic Acid 28% solution 45ml
Boric Acid crystals 7.5g
Potassium Alum (fine crystals) 15g
Cold water to make 1 Liter
Notes:
Do not use powdered boric acid – only crystals
Do not dilute for use
Fix film 10 minutes @ 20⁰C / 68⁰F
Test fixer in room light with scrap film. Film enters fixer opaque and clears. Fix time is twice clearing time. Discard when clear time reaches 10 minutes.
You are nuts to compound photo developers and fixers as X-ray film is developable in the same stuff we use for photographic film. The films are very similar however X-ray film often has an emulsion on both sides to increase density. Thus X-ray film exhausts chemicals at double speed.