plant extracts - Pyrogallic Acid
Pyrogallic Acid (also known as 3,4,5-trihydroxybenzoic acid) is a trihydroxybenzoic acid. it is classified as a phenolic acid. it is establish in gallnuts, sumac, battleaxe hazel, tea leaves, oak bark, and other plants. it is a caucasian windowless, although samples are typically brown owing to having a fondness for oxidation. salts and esters of Pyrogallic Acid are termed "gallates".
Pyrogallic Acid is an impressive component of iron causticity ink, the support european review and outline ink from the 12th to 19th centuries, with a news extending to the roman empire and the unconcerned disoriented scrolls. pliny the pre-eminent describes the basis of Pyrogallic Acid as a means of detecting an adulteratio
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