Fe₂O₃ + CO → CO₄ + 2 Fe

This is an oxidation-reduction (redox) reaction:

CO is a reducing agent, Fe₂O₃ is an oxidizing agent.

Reactants:

• Fe₂O₃ – Iron(III) oxide
  • Other names: Ferric oxide , Hematite , Ferric iron ... show moreRed iron oxide , Rouge , Maghemite , Colcothar , Iron sesquioxide , Rust , Ochre , Iron oxide dust and fume (as Fe) , Iron oxide red , Red oxide , Anhydrous ferric oxide , Iron (III) oxide , Diiron trioxide , Iron trioxide , Ferric sesquioxide , Iron(III) oxide [Iron oxide dust and fume (as Fe)] , Iron(III)oxide [Rouge] show less
  • Appearance: Red-brown solid ; Reddish brown-to-black crystals or powder ; Reddish-brown solid. [Note: Exposure to fume may occur during the arc-welding of iron.] ; A fine, red powder of ferric oxide. [Note: Usually used in cake form or impregnated in paper or cloth.]
• CO – Carbon monoxide
  • Other names: Carbon monooxide , Carbonous oxide , Carbon(II) oxide ... show moreCarbonyl , Flue gas , Monoxide , Carboneum oxygenisatum , CO , C#O , [CO] , Carbon oxide , Carbonic oxide show less
  • Appearance: Colorless gas ; Odourless tasteless colourless compressed gas ; Colorless, odorless gas. [Note: Shipped as a nonliquefied or liquefied compressed gas.]

Products:

• CO₄
  • Names: Carbon tetroxide , 1,2,3-trioxetan-4-one , 4-trioxetanone
• Fe
  • Names: Iron , Fe , Element 26 ... show moreFer , 26Fe , Eisen , Ferrum , Hierro , Carbonyl iron , Electrolytic iron , Ferrum metallicum , Iron powder , Iron, carbonyl , Iron, electrolytic , Iron, elemental , Iron, reduced , Reduced iron show less