Photographers' Formulary 10g Tannic Acid
Photographers' Formulary
sku: PYTNA10G
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€ 5.13
Shipping from: United States
Description
Tannic Acid is commonly used as a Reducer, as a mordant, In the preparation of the dry plates by the Tannin Process of Major Russell and Tannic acid toning of cyanotypes. Note: Tannic acid, a commercial form of tannin is not a true acid but an acid-like substance called a polyphenol.
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