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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. morintannic acid

from the GNU version of the Collaborative International Dictionary of English

  • n. See morintannic.

from The Century Dictionary and Cyclopedia

  • n. A pale yellow crystalline compound, (OH)3-C6H2.CO.C6H3(OH)2 + H20; protocatechuphloroglucinol. It occurs in yellow-wood, Morus tinctoria (or Maclura aurantiaca). When boiled with concentrated caustic potash or when heated with dilute sulphuric acid to 120° C., it yields phloroglucinol and protocatechuic acid. It loses its water of crystallization at 130° C. and melts at 200° C. See morintannic acid.


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