Fe2S3 + 24 NaOH → 9 Na2O + Fe2O3 + 12 H2 + 3 Na2SO4
This is an oxidation-reduction (redox) reaction:
3 S-II - 24 e- → 3 SVI (oxidation)
24 HI + 24 e- → 24 H0 (reduction)
Fe2S3 is a reducing agent, NaOH is an oxidizing agent.
Reactants:
- Fe2S3
- NaOH
Products:
- Na2O – Sodium oxide
- Fe2O3 – Iron(III) oxide
- Other names: Ferric oxide , Hematite , Ferric iron
- Appearance: Red-brown solid ; Reddish brown-to-black crystals or powder ; Reddish-brown solid. [Note: Exposure to fume may occur during the arc-welding of iron.] ; A fine, red powder of ferric oxide. [Note: Usually used in cake form or impregnated in paper or cloth.]
- H2
- Na2SO4