Photographers' Formulary Tannic Acid (100g)

Photographers' Formulary Tannic Acid (100g)

Photographers' Formulary Tannic Acid (100g)

B&H # PHTA100G MFR # 10-1453 100G
Photographers' Formulary Tannic Acid (100g)

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Product Highlights

  • Commonly Used as a Reducer
  • Prepare Dry Plates for Tannin Process
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  • 1Description

This is 100g of Tannic Acid from Photographers' Formulary. It is commonly used as a reducer during the development process and is also used extensively in the preparation of dry plates for the Tannin Process of Major Russell.

UPC: 675152145314
Table of Contents
  • 1Description
Synonyms Tannin is a name applied to vegetable substances possessing acid properties and having an astringent taste, and which produce, with iron salts, a dark precipitate or solution, and precipitate albumen and gelatin.
Appearance A yellowish to brownish powder
Characteristic odor
Uses As a mordant
In the preparation of the dry plates by the Tannin Process of Major Russell
Tannic acid toning of cyanotypes
Chemical Formula C76H52O46
Notes Tannic acid, a commercial form of tannin is not a true acid but an acid-like substance called a polyphenol.
Weight 3.5 oz / 100 g
Packaging Info
Package Weight 0.25 lb
Box Dimensions (LxWxH) 3.7 x 2.4 x 2.3"
Tannic Acid (100g) is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Great for cyanotypes Used this as an alternative to tea and coffee to tone my cyanotypes. Works great, without staining the paper. Gives a reddish brown color, if toned without sodium carbonate bleach first. With sodium carbonate bleach step, more of a straight brown (but shadow and highlight details disappear...not to my liking)
Date published: 2013-08-12
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