6 SnCl2 + 2 SO2 + 8 HCl → SnS2 + 5 SnCl4 + 4 H2O
This is an oxidation-reduction (redox) reaction:
2 SIV + 12 e- → 2 S-II (reduction)
6 SnII - 12 e- → 6 SnIV (oxidation)
SO2 is an oxidizing agent, SnCl2 is a reducing agent.
Reactants:
- SnCl2 – Tin(II) chloride , Tin dichloride
- 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.]
- HCl – Chlorane , Hydrogen chloride
- Other names: Hydrochloric acid , M , Uriatic acid
- Appearance: Colorless, transparent liquid, fumes in air if concentrated ; Colorless gas ; Colourless compressed liquefied gas with pungent odour ; Colorless to slightly yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]
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