Kodak SD-19a

Kodak Special Developer for increasing film speed

Part A
Kodak Anti-Fog #20.2% solution20ml
Hydrazine Dihydrochloride1.6g
Cold water to make30ml
Part B
Water approx 50C500ml
Sodium Sulfite (anhydrous)90g
Sodium Carbonate (monohydrate*)52.5g
Potassium Bromide5g
Water to make1000ml
Mixing Instructions: Add chemicals in specified sequence. Anti-fog solution can be made by dissolving 2g anti-fog in 1000 ml distilled water. Always wear gloves and goggles with this solution as Hydrazine Dihydrochloride is a known irritant.
Dilution: Dilute 30 ml Part A + 1000 ml Part B.
Usage: Starting point dev time: 12-20 mins.


*multiply amount by 0.833 if using Sodium Carbonate in anhydrous form.
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