Fe₃I₈ + 4 K₂CO₃ → Fe₃O₄ + 8 KI + 4 CO₂

Reactants:

• Fe₃I₈
• K₂CO₃ – Potassium carbonate
  • Other names: Carbonate of potash , Dipotassium carbonate , Sub-carbonate of potash ... show morePearl ash , Potash , Salt of tartar , Salt of wormwood. , Potassium carbonate (anhydrous) , K2CO3 , Carbonic acid, dipotassium salt , Potassium carbonate, anhydrous , Kaliumcarbonat , Potash, sulfurated show less
  • Appearance: White, hygroscopic solid ; Colourless hygroscopic crystals or hygroscopic white powder

Products:

• Fe₃O₄ – Iron(II) iron(III) oxide
  • Other names: Iron(II,III) oxide , Ferrous ferric oxide , Ferroso ferric oxide ... show moreIron(II , III) oxide , Magnetite , Black iron oxide , Lodestone , Rust , Iron(II) diiron(III) oxide , Ferro ferric oxide , Ferric ferrous oxide , Ferrosoferric oxide , Triiron tetraoxide show less
  • Appearance: Solid black powder
• KI
  • Names: Potassium iodide , KI , Thyrosafe ... show moreThyroshield , Iosat , Kaliumiodid , Nukepills , Potassium Iodide show less
• CO₂
  • Names: Carbon dioxide , {{plainlist| , CO2 ... show moreCarbonic acid gas , Dry ice , [CO2] , Carbonic anhydride , R-744 , E-290 , E 290 , E290 , Carbonic acid anhydride , Carbon-12 dioxide , Methanedione , Carbon oxide , CO₂ , [Note: Normal constituent of air (about 300 ppm)]. show less
  • Appearance: Colorless gas ; Odourless colourless compressed liquefied gas ; Colorless, odorless gas. [Note: Shipped as a liquefied compressed gas. Solid form is utilized as dry ice.]