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Manufacturer's warranty as detailed in the manual
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Potassium Dichromate is a chemical with a variety of uses in analog photography. It is popularly used with gum arabic in gum bichromate printing processes but also has applications in carbon printing. It is also an ingredient in certain intensifier solutions for treating thin or under-developed negatives. Finally, Potassium Dichromate is used in some reversal processes for producing black and white positive images from negative films.
This is a 100 gram bottle of powdered potassium dichromate.