Wattle bark

Description

A tannin-rich extract obtained from the bark of acacia species, such as Acacia dealbata and Acacia pycantha, native to Australia and South Africa. Wattle bark contains 25-50% tannins. It has been used as a vegetable tanning agent to produce a thick, heavy leather for shoe soles.

Synonyms and Related Terms

Acacia dealbata; Acacia pycantha; acacia bark; mimosa bark; Australian bark; corteza de acacia (Esp.)

Sources Checked for Data in Record

• G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p.165: 40-50% tannins

• Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993 Comment: 25-35% tannins

• Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976

• Encyclopedia Britannica, http://www.britannica.com Comment: "acacia." Encyclopædia Britannica. 13 Oct. 2004 .