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Photographers' Formulary Ammonium Persulfate - 1 Lb.

B&H # PHAPSLB MFR # 10-0170 1LB
Photographers' Formulary Ammonium Persulfate - 1 Lb.

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Synonyms Presulfate of ammonia
Ammonium Peroxydisulfate
Peroxydisulfuric Acid
Diammonium Salt
Diammonium peroxydisulfate
Appearance Colorless crystals
White crystalline powder
Odorless
Uses Flattening reducer (i.e., reduces highlight detail more than shadows)
Removes developer stains
Chemical Formula (NH4)2S2O8
Notes Stable under ordinary conditions of use and storage. Stability decreases in the presence of moisture.
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