tannic acid (redirected from tannic acids)

tannic acid

n.

1. A white or yellowish astringent powder, C₁₄H₁₀O₉, derived from nutgalls and used as a denaturant and in tanning and textiles.

2. A lustrous yellowish to light brown amorphous, powdered, flaked, or spongy mass having the approximate composition C₇₆H₅₂O₄₆, derived from the bark and fruit of many plants and used in photography, as a mordant, and to clarify wine and beer.

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tannic acid  (tnk)

A lustrous, yellow-brown, amorphous tannin, having the chemical composition C₇₆H₅₂O₄₆. It is derived from the bark and fruit of many plants and used in photography, as a mordant, and as a clarifying agent for wine and beer.

Thesaurus

Noun

1.

tannic acid - any of various complex phenolic substances of plant origin; used in tanning and in medicine tannin cutch, kutch - tannin extract derived from any of several mangrove barks of Pacific areas phenol - any of a class of weakly acidic organic compounds; molecule contains one or more hydroxyl groups catechin - a tannic acid that is extracted from black catechu as a white crystalline substance