Cars rust faster in salt water than they do in fresh water. Salt is an oxidizing agent, not a reducing agent. Silver halides need to be reduced to metallic silver, so you need a reducing agent, not an oxidizing agent. That's why salt isn't used as a developing agent in silver halide photography.
Cars rust faster in salt water than they do in fresh water. Salt is an oxidizing agent, not a reducing agent. Silver halides need to be reduced to metallic silver, so you need a reducing agent, not an oxidizing agent. That's why salt isn't used as a developing agent in silver halide photography.
gainer submitted a new resource: (there was a url link here which no longer exists) - Experiments with Metol and ascorbic acid. The factors affecting developer activity are temperature, pH, concentration, products of aerial oxidation, products of silver halide reduction, and the orientations...
www.photrio.com
No need to stick to his formula, instead of metaborate you could use sodium carbonate (washing soda) and add some sodium bicarbonate (baking soda) if you find the sodium carbonate alone too active. There never has been a widely used formula for p-aminophenol/ascorbate so you would need to conduct something of an experiment.