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单词 gallic acid
释义

WordReference Random House Unabridged Dictionary of American English © 2024
gallic acid, [Chem.]
  1. Chemistrya white or yellowish, crystalline, sparingly water-soluble solid, C7H6O5, obtained from nutgalls, used chiefly in tanning and in ink dyes.
  • French acide gallique
  • 1785–95

Collins Concise English Dictionary © HarperCollins Publishers::
gallic acid n
  1. a colourless crystalline compound obtained from tannin: used as a tanning agent and in making inks, paper, and pyrogallol; 3,4,5-trihydroxybenzoic acid. Formula: C6H2(OH)3COOH
Etymology: 18th Century: from French gallique; see gall³
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