2 Fe2S3 + 9 O2 2 Fe2O3 + 6 SO2

This is an oxidation-reduction (redox) reaction:

6 S-II - 36 e- 6 SIV (oxidation)

18 O0 + 36 e- 18 O-II (reduction)

Fe2S3 is a reducing agent, O2 is an oxidizing agent.

Reactants:

  • Fe2S3
    • Names: Iron(3+) sulfide source: wikidata, accessed on: 2019-09-02, Fe2S3 source: wikidata, accessed on: 2019-09-02, Iron sesquisulfide source: wikidata, accessed on: 2019-09-02, Ferric sulfide source: wikidata, accessed on: 2019-09-02
  • O2
    • Names: Dioxygen source: wikidata, accessed on: 2019-09-07, Oxygen source: ICSC, accessed on: 2019-09-04source: wikidata, accessed on: 2019-09-07, Oxygen (liquefied) source: ICSC, accessed on: 2019-09-04
    • Appearance: Odourless compressed gas source: ICSC, accessed on: 2019-09-04; Liquefied gas. colourless-to-blue extremely cold liquid source: ICSC, accessed on: 2019-09-04

Products:

  • Fe2O3Iron(III) oxide source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-07
    • Other names: Ferric oxide source: wikipedia, accessed on: 2019-09-27source: ICSC, accessed on: 2019-09-04source: wikidata, accessed on: 2019-09-07source: NIOSH NPG, accessed on: 2019-09-02, Hematite source: wikipedia, accessed on: 2019-09-27, Ferric iron source: wikipedia, accessed on: 2019-09-27
    • Appearance: Red-brown solid source: wikipedia, accessed on: 2019-09-27; Reddish brown-to-black crystals or powder source: ICSC, accessed on: 2019-09-04; Reddish-brown solid. [Note: Exposure to fume may occur during the arc-welding of iron.] source: NIOSH NPG, accessed on: 2019-09-02; A fine, red powder of ferric oxide. [Note: Usually used in cake form or impregnated in paper or cloth.] source: NIOSH NPG, accessed on: 2019-09-02
  • SO2Sulfur dioxide source: wikipedia, accessed on: 2019-09-28source: wikidata, accessed on: 2019-09-02source: NIOSH NPG, accessed on: 2019-09-02
    • Other names: Sulfurous anhydride source: wikipedia, accessed on: 2019-09-28source: wikidata, accessed on: 2019-09-02source: ICSC, accessed on: 2019-09-04, Sulphur dioxide source: ICSC, accessed on: 2019-09-04source: wikidata, accessed on: 2019-09-02, Sulfurous acid anhydride source: wikidata, accessed on: 2019-09-02source: NIOSH NPG, accessed on: 2019-09-02
    • Appearance: Colorless gas source: wikipedia, accessed on: 2019-09-28; Colourless gas or compressed liquefied gas with pungent odour source: ICSC, accessed on: 2019-09-04; Colorless gas with a characteristic, irritating, pungent odor. [Note: A liquid below 14°F. Shipped as a liquefied compressed gas.] source: NIOSH NPG, accessed on: 2019-09-02