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(Pt 9) Found Memories - Take 2. Amidol/Pyrocatechol developer. Potassium Bromide and Benzotriazole added to restrain. Very enthusiastic reaction, Preserving working solution with Anhydrous Sulfuric acid titrated into a solute of Bisulfite. Stock solution is PEG (Polyethylene Glycol) based, no water in the stock solute as both developing agents readily decay in water.
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