title: Iodosyl trifluoride
text: # Iodosyl trifluoride
  
  Iodosyl trifluoride is an inorganic compound of iodine, fluorine, and oxygen with the chemical formula $IOF_3.$
  
  ## Synthesis
  
  Synthesis of iodosyl trifluoride can be done by a reaction of iodine pentoxide with iodine pentafluoride.
  
         $I_2O_5$ + $3IF_5$ → $5IOF_3$
  
  Synthesis can be by a reaction of gases:
  
         $I_2$ + $O_2$ + $3F_2$ → $2IOF_3$
  
  Or alternately by reaction of iodine pentafluoride with water:
  
         $IF_5$ + $H_2O$ → $IOF_3$ + 2HF
  
  ## Physical properties
  
  Iodosyl trifluoride forms hygroscopic colorless needles. Reacts with water.
  
  ## Chemical properties
  
  Iodosyl trifluoride is hygroscopic and decomposes into $IO_2F$ and $IF_5$ at 110 °C.
  
  