2 Fe2(SO4)3 (s) → 2 Fe2O3 (s) + 6 SO2 (g) + 3 O2 (g)
This is an oxidation-reduction (redox) reaction:
6 SVI + 12 e- → 6 SIV (reduction)
6 O-II - 12 e- → 6 O0 (oxidation)
Fe2(SO4)3 is an oxidizing agent, Fe2(SO4)3 is a reducing agent.
Reactants:
Products:
- Fe2O3 – Iron(III) oxide
- Other names: Ferric oxide , Hematite , Ferric iron
- 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.]
- SO2 – Sulfur dioxide
- Other names: Sulfurous anhydride , Sulphur dioxide , Sulfurous acid anhydride
- Appearance: Colorless gas ; Colourless gas or compressed liquefied gas with pungent odour ; Colorless gas with a characteristic, irritating, pungent odor. [Note: A liquid below 14°F. Shipped as a liquefied compressed gas.]
- O2