Sentence Examples


  • "PAUL DEROULEDE (1846-1914), French author and politician (see 8.74), died at Mont-Boron, near Nice, Jan.
  • BORON (symbol B, atomic weight ii), one of the non-metallic elements, occurring in nature in the form of boracic (boric) acid, and in various borates such as borax, tincal,.
  • Thenard in 1808 by heating boron trioxide with potassium, in an iron tube.
  • After the vigorous reaction has ceased and all the sodium has been used up, the mass is thrown into dilute hydrochloric acid, when the soluble sodium salts go into solution, and the insoluble boron remains as a brown powder, which may by filtered off and dried.
  • Pure amorphous boron is a chestnut-coloured powder of specific gravity 2.45; it sublimes in the electric arc, is totally unaffected by air at ordinary temperatures, and burns on strong ignition with production of the oxide B 2 0 3 and the nitride BN.

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