2 CuFeS2 + O2 → 2 FeS + Cu2S + SO2
This is an oxidation-reduction (redox) reaction:
2 CuII + 2 e- → 2 CuI (reduction)
S-II - 6 e- → SIV (oxidation)
2 O0 + 4 e- → 2 O-II (reduction)
CuFeS2 is an oxidizing agent, CuFeS2 is a reducing agent, O2 is an oxidizing agent.
Reactants:
- CuFeS2
- O2
Products:
- FeS
- Cu2S – Copper(I) Sulphide
- 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.]