Solution A

Propylene Glycol (preheated to 150 degrees F) 750ml
Add Pyrocatechin and stir until COMPLETELY dissolved. 50g
Add Phenidone and stir until dissolved 2g
Add Sodium Metabisulfate 10G
Add Potassium Bromide 1g
Propylene Glycol to make 1000m

Solution B

Distilled water 750ml
Potassium Carbonate 750g
Water to make (68 degrees F) 1000ml

 

Pyrocat HD in Glycol