Chestnut tannin

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A vegetable tannin of the pyrogallol class is extractable from chestnut wood. Chestnut tannin extract has a low pH, low salts content and produces a firm, heavy leather with a pale, reddish color. Chestnut extract is usually mixed with other tannins, such as quebracho, mimosa, or myrobalans. Extract from the tree bark, while not used as a tannin, has been used as a dye. Its dark color extracts were used in 19th century Italy and southern France to make an inexpensive fast black dye for silk.

Synonyms and Related Terms

chestnut bark; chestnut extract; chestnut dye

Other Properties

Soluble in water.

Sources Checked for Data in Record

  • Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
  • Website address 1 Comment: American Leather Chemists Association Glossary at
  • F. Crace-Calvert, Dyeing and Calico Printing, Palmer & Howe, London, 1876