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Reducer III For Negatives*(GROUND UPS ONLY)

5 Stars

Product Description

Formulary's Reducer III For Negatives is a potassium permanganate-ammonium Persulfate reducer that removes silver metal from the negative in approximate proportion to its existing density. In this respect, the action of Reducer III is like development in reverse. The net effect is that the overall density of the negative is diminished. The kit contains chemicals to make two stock solutions of 1 liter each. The working solution is prepared just prior to use. Sodium Metabisulfite is included in the kit for an after-bath.


No shipping by mail (USPS) or outside the Continental USA, Unable to ship to Canada. UPS Ground only!

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  1. reducer 5 Star Review

    Posted by on 13th Jun 2015

    Easy to use. Easy to mix. Instructions for mixing clear and concise.

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