title: Berkelium(III) oxide
text: # Berkelium(III) oxide
  
  Berkelium(III) oxide is a binary inorganic compound of berkelium and oxygen with the chemical formula Bk $_2O$ $_3.$
  
  ## Synthesis
  
  Berkelium(III) oxide can be prepared from berkelium(IV) oxide by reduction with hydrogen:
  
         $2BkO_2$ + $H_2$ → $Bk_2O_3$ + $H_2O$
  
  ## Physical properties
  
  The compound forms a yellow-green solid with a melting point of 1920 °C. It forms a body-centered cubic crystal lattice with a = 1088.0 ± 0.5 pm.
  
  Insoluble in water.
  
  