Potassium dichromate
See Potassium bichromate.
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Potassium dichromate - See Potassium bichromate.
Potassium ferricyanide - chemical used in Farmer's reducer as a bleach.
Potassium hydroxide - caustic potash. Highly active alkali, used as the basis for high contrast developing solutions.
Other popular bleach solutions use potassium dichromate (a hexavalent chromium) or permanganate. Both ferricyanide and dichromate are tightly regulated for sewer disposal.
-Bichromate - refers to potassium bichromate or potassium dichromate, used for bleaching and as a sensitizer for gelatin.
 See also: Digital, Potassium bichromate, Stand, Bichromate, Yellow
  
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