S2O82- + (Mn)2+ + 4 OH- MnO2 + 2 SO42- + 2 H2O

This is an oxidation-reduction (redox) reaction:

MnII - 2 e- MnIV (oxidation)

2 SVII + 2 e- 2 SVI (reduction)

Mn2+ is a reducing agent, S2O82- is an oxidizing agent.

Reactants:

  • S2O82-
  • Mn2+
  • OH-Hydroxide source: wikipedia, accessed on: 2019-09-27
    • Other names: Hydroxide ion source: wikidata, accessed on: 2019-09-07

Products:

  • MnO2Manganese oxide source: wikipedia, accessed on: 2019-09-27, Manganese(IV) oxide source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02
    • Other names: Manganese dioxide source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02source: ICSC, accessed on: 2019-09-04, Pyrolusite source: wikipedia, accessed on: 2019-09-27, Hyperoxide of manganese source: wikipedia, accessed on: 2019-09-27
    • Appearance: Brown-black solid source: wikipedia, accessed on: 2019-09-27; Black-to-brown powder source: ICSC, accessed on: 2019-09-04
  • SO42-Sulfate source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-07
    • Other names: Sulfate ion source: wikidata, accessed on: 2019-09-07, Sulphate ion source: wikidata, accessed on: 2019-09-07, Sulphate source: wikidata, accessed on: 2019-09-07
  • H2OWater, oxidane source: wikipedia, accessed on: 2019-09-27
    • Other names: Water (H2O) source: wikipedia, accessed on: 2019-09-27, Hydrogen hydroxide (HH or HOH) source: wikipedia, accessed on: 2019-09-27, Hydrogen oxide source: wikipedia, accessed on: 2019-09-27
    • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas source: wikipedia, accessed on: 2019-09-27