Phenidon A 10 g
Phenidone (1-phenyl-3-pyrazolidinone) is an organic compound that is primarily used as a photographicdeveloper. It has five to ten times the developing power as Metol. It also has low toxicity and, unlike some other developers, does not cause dermatitis upon skin contact.
Phenidone is used as a low toxic common photography developer. It is sparingly soluble in cold water and moderately in hot, and can require temperatures of 175°F/80°C to dissolve.
Phenidone can be substituted for metol. There is evidence that as a substitute for metol it causes true increase in film speed. However, Phenidone should not be used as a substitute in developers in which metol is the sole developing agent, such as Kodak D-23 and D-25. Try substituting approximately 10% of the amount of Phenidone for the amount of metol required.
|Water(125°F/52°C)||24 oz||750 ml|
|Sodium bisulfite||90 grains||6 grams|
|Phenidone||30 grains||2 grames|
|Cold water to make||32 oz||1 liter|
LEAD-TIME 2 WEEKS IF OUT OF STOCK
SUBJECT TO MANUFACTURING DELAYS
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