2 FeS3 + 42 NaOH → 15 Na2O + Fe2O3 + 21 H2 + 6 Na2SO4
This is an oxidation-reduction (redox) reaction:
6 S-II - 48 e- → 6 SVI (oxidation)
42 HI + 42 e- → 42 H0 (reduction)
2 FeVI + 6 e- → 2 FeIII (reduction)
FeS3 is a reducing agent, NaOH is an oxidizing agent, FeS3 is an oxidizing agent.
Reactants:
- FeS3
- 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