2 HClO3 + 4 SO2 + 3 H2O → Cl2O + 4 H2SO4
This is an oxidation-reduction (redox) reaction:
4 SIV - 8 e- → 4 SVI (oxidation)
2 ClV + 8 e- → 2 ClI (reduction)
SO2 is a reducing agent, HClO3 is an oxidizing agent.
Reactants:
- HClO3
- 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
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