Ferrotannin

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Description

A complex natural black dye fixed by the addition of iron salts and oak gall extract. Ferrotannin complexes are commonly found in iron-gall inks.

Sources Checked for Data in Record

  • J. Thornton, 'The Use of Dyes and Colored Varnishes in Wood Polychromy', Painted Wood: History and Conservation, The Getty Conservation Insitute, Los Angeles, 1998