Sn + 4 H2SO4 → Sn(SO4)2 + 2 SO2 + 4 H2O
This is an oxidation-reduction (redox) reaction:
2 SVI + 4 e- → 2 SIV (reduction)
Sn0 - 4 e- → SnIV (oxidation)
H2SO4 is an oxidizing agent, Sn is a reducing agent.
Reactants:
Products:
- Sn(SO4)2
- 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.]
- H2O – Water, oxidane