GALLOTANNIC ACID Definition & Meaning

gallotannic acid

[ gal-uh-tan-ik as-id ]

Phonetic (Standard)IPA

noun

Chemistry

a form of tannic acid, found in oak galls.

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51�Թ� History and Origins

Origin of gallotannic acid¹

First recorded in 1855–60; from Latin gall(a) “gallnut” + -o- ( def ) + tannic (acid) ( def ); gall ³( def ), tannic

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Example Sentences

Examples have not been reviewed.

The technique detects the presence of iron contained in "iron gall ink" which was typically produced by adding a source of iron, such as nails, to gallotannic acid.

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A soft, unctuous form results on treating carbon with ash or silica in special furnaces, and this gives the so-called “deflocculated” variety when treated with gallotannic acid.

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