Bolognian phosphorus



Bolognian phosphorus ‎(uncountable)

  1. (obsolete, inorganic chemistry) A poorly-characterized phosphorescent substance obtained by heating barium sulfate.
    • 1839 John White Webster - A Manual of Chemistry: Containing the Principal Facts of the Science, in the Order in which They...
      and the Bolognian phosphorus, discovered by Vincenzo Cascariolo, a shoemaker of Bologna, is made by reducing compact sulphate of baryta to a fine powder, which is formed into cakes with mucilage, and these are heated to redness.