4 Na2S2O3 → 3 Na2SO4 + Na2S5
This is an oxidation-reduction (redox) reaction:
5 SII + 12 e- → 5 S-2/5 (reduction)
3 SII - 12 e- → 3 SVI (oxidation)
Na2S2O3 is both an oxidizing and a reducing agent (disproportionation (dismutation)).
Reactants:
- Na2S2O3
Products: