2 S2O32- + I2 → S4O62- + 2 (I)-

This is an oxidation-reduction (redox) reaction:

4 SII - 2 e- → 4 S5/2 (oxidation)

2 I0 + 2 e- → 2 I-I (reduction)

S2O32- is a reducing agent, I2 is an oxidizing agent.

Reactants:

  • S2O32-
  • I2
    • Names: Iodine source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Jod source: ICSC, accessed: 2019-09-04, Iode source: ICSC, accessed: 2019-09-04
    • Appearance: Bluish black or dark purple crystals with pungent odour source: ICSC, accessed: 2019-09-04; Violet solid with a sharp, characteristic odor. source: NIOSH NPG, accessed: 2019-09-02

Products:

  • S4O62-
  • I-