Entertainment / Photography / Potassium Sulfide: Chemical used in sulfide toning.
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Entertainment / Photography / Potassium Persulfate: Chemical sometimes used in super-proportional reducers. MORE
Entertainment / Photography / Potassium Permanganate: Chemical used extensively in reducers, bleaches and toners. MORE
Entertainment / Photography / Potassium Metabisulfite: Acidifier used in fixers and stop baths. MORE
Entertainment / Photography / Potassium Iodide: Chemical used in bleaches, toners and intensifiers. MORE
Entertainment / Photography / Potassium Sulfide: Chemical used in sulfide toning. MORE
Entertainment / Photography / Potassium Thiocyanate: Chemical used in some fine grain developers as a silver solvent. MORE