2 Fe₃O₄ + C → 6 FeO + CO₂

This is an oxidation-reduction (redox) reaction:

C is a reducing agent, Fe₃O₄ is an oxidizing agent.

Reactants:

• 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
• C
  • Names: Carbon black , Acetylene black , Channel black ... show moreFurnace black , Lamp black , Thermal black , Carbon soot show less
  • Appearance: Odourless black pellets or extremely fine powder ; Black, odorless solid.

Products:

• FeO – Iron(II) oxide
  • Other names: Ferrous oxide , Iron monoxide , Iron oxide ... show moreIron monooxide , Ferrous monoxide , Iron (II) oxide , C.I. 77489 show less
  • Appearance: Black crystals ; Black solid in various forms
• 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.]