Difference between revisions of "Chestnut tannin"
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== Description == | == Description == | ||
| − | A vegetable tannin of the pyrogallol class is extractable from chestnut wood. Chestnut tannin extract has a low pH | + | A vegetable tannin of the pyrogallol class is extractable with hot water from chestnut wood (13.4%) and bark (6.8%). Chestnut tannin extract has a low pH and low salts, but high acids and high sugar content. It produces a firm, heavy leather with a pale, reddish color. Chestnut extract is usually mixed with other tannins, such as [[quebracho]], [[mimosa]], or [[myrobalan extract|myrobalans]]. The dark color extracts from the tree bark has been used as a dye in 19th century Italy and southern France to make an inexpensive fast black dye for silk. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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chestnut bark; chestnut extract; chestnut dye | chestnut bark; chestnut extract; chestnut dye | ||
| − | == | + | == Physical and ChemicalProperties == |
| − | Soluble in water. | + | Soluble in hot water. |
| − | == | + | == Resources and Citations == |
| + | |||
| + | * Wikipedia: https://en.wikipedia.org/wiki/Chestnut (accessed April 2020) | ||
* Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982 | * Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982 | ||
| − | * | + | * American Leather Chemists Association Glossary at www.leatherchemists.org |
* F. Crace-Calvert, ''Dyeing and Calico Printing'', Palmer & Howe, London, 1876 | * F. Crace-Calvert, ''Dyeing and Calico Printing'', Palmer & Howe, London, 1876 | ||
Latest revision as of 10:02, 19 August 2020
Description
A vegetable tannin of the pyrogallol class is extractable with hot water from chestnut wood (13.4%) and bark (6.8%). Chestnut tannin extract has a low pH and low salts, but high acids and high sugar content. It produces a firm, heavy leather with a pale, reddish color. Chestnut extract is usually mixed with other tannins, such as Quebracho, Mimosa, or myrobalans. The dark color extracts from the tree bark has been used as a dye 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
Physical and ChemicalProperties
Soluble in hot water.
Resources and Citations
- Wikipedia: https://en.wikipedia.org/wiki/Chestnut (accessed April 2020)
- Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
- American Leather Chemists Association Glossary at www.leatherchemists.org
- F. Crace-Calvert, Dyeing and Calico Printing, Palmer & Howe, London, 1876