2 HIO3 (aq) + 5 H2O2 (aq) → 5 O2 (g) + I2 (s) + 6 H2O (l)
This is an oxidation-reduction (redox) reaction:
2 IV + 10 e- → 2 I0 (reduction)
10 O-I - 10 e- → 10 O0 (oxidation)
HIO3 is an oxidizing agent, H2O2 is a reducing agent.
This is a precipitation reaction: I2 is the formed precipitate.
This is a gas evolution reaction, O2 is the formed gas.
- H2O2 – Hydrogen peroxide
- H2O – Water, oxidane