Bolognian phosphorus

短语

释义与例句

n.
  1. 1.

    A poorly-characterized phosphorescent substance obtained by heating barium sulfate.

    废旧 不可数 化学

    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.