Sentence Examples


  • PYROGALLOL, or Pyrogallic Acid, a trioxybenzene, C 6 H 3 (OH) 3 (1: 2: 3), prepared by Scheele in 1786 by heating gallic acid, C 6 H 2 (OH) 3 CO 2 H.
  • Pyrogallol dimethyl ether is found in beechwood tar.
  • Pyrogallol has antiseptic properties and is employed medicinally in the treatment of psoriasis.
  • Eugallol, or monacetyl pyrogallol and lenigallol, or triacetyl pyrogallol, are also used.
  • This may be effected by burning phosphorus in a confined volume of air, by the action of an alkaline solution of pyrogallol on air, by passing air over heated copper, or by the action of copper on air in the presence of ammoniacal solutions.

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