Tannic Acid - Research Article from Chemical Compounds

This encyclopedia article consists of approximately 4 pages of information about Tannic Acid.

Tannic Acid - Research Article from Chemical Compounds

This encyclopedia article consists of approximately 4 pages of information about Tannic Acid.
This section contains 943 words
(approx. 4 pages at 300 words per page)
Buy the Tannic Acid Encyclopedia Article

Key Facts

Other Names:

Penta-(m-digalloyl)-glucose; tannin; gallotannin

Formula:

C76H52O46

Elements:

Carbon, hydrogen, oxygen

Compound Type:

Organic

State:

Solid

Molecular Weight:

1701.20 g/mol

Melting Point:

Begins to decompose at 210°C (410°F)

Boiling Point:

Not applicable

Solubility:

Soluble in water, ethyl alcohol, and acetone

Overview

Tannic acid (TAN-ik AS-id) is a pale yellow amorphous powder, shiny scales, or spongy material that gradually darkens when exposed to air. It is odorless but has a strong, bitter taste. It is a derivative of the simple sugar glucose (C6H12O6) in which five hydroxyl groups (-OH) have been replaced by large complex side chains known as digalloyl groups. Tannic acid occurs naturally in the bark of hemlock, chestnut, mangrove, and oak trees; in sumac plants; and in plant galls, the hard swellings that develop on trees infested with insect parasites. The name tannic acid comes from...

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This section contains 943 words
(approx. 4 pages at 300 words per page)
Buy the Tannic Acid Encyclopedia Article
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Tannic Acid from UXL. ©2008 by U•X•L. U•X•L is an imprint of Thomson Gale, a division of Thomson Learning, Inc. All rights reserved.