PbS (s) + 4 H2O2 (aq) PbSO4 (s) + 4 H2O (l)

This is an oxidation-reduction (redox) reaction:

S-II - 8 e- SVI (oxidation)

8 O-I + 8 e- 8 O-II (reduction)

PbS is a reducing agent, H2O2 is an oxidizing agent.

Reactants:

  • PbS
    • Names: Lead(II) sulfide source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02, Plumbous sulfide source: wikipedia, accessed on: 2019-09-27, Galena source: wikipedia, accessed on: 2019-09-27
    • Appearance: Black source: wikipedia, accessed on: 2019-09-27
  • H2O2Hydrogen peroxide source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02source: NIOSH NPG, accessed on: 2019-09-02
    • Other names: Dioxidane source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02, Oxidanyl source: wikipedia, accessed on: 2019-09-27, Perhydroxic acid source: wikipedia, accessed on: 2019-09-27
    • Appearance: Very light blue color; colorless in solution source: wikipedia, accessed on: 2019-09-27; Colourless liquid source: ICSC, accessed on: 2019-09-04; Colorless liquid with a slightly sharp odor. [Note: The pure compound is a crystalline solid below 12°F. Often used in an aqueous solution.] source: NIOSH NPG, accessed on: 2019-09-02

Products:

  • PbSO4Lead(II) sulfate source: wikipedia, accessed on: 2019-09-27
    • Other names: Anglesite source: wikipedia, accessed on: 2019-09-27, Fast white source: wikipedia, accessed on: 2019-09-27, Milk white source: wikipedia, accessed on: 2019-09-27
    • Appearance: White solid source: wikipedia, accessed on: 2019-09-27
  • 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