3 PbO2 (s) + 4 B (s) → 3 Pb (s) + 2 B2O3 (s)

This is an oxidation-reduction (redox) reaction:

3 PbIV + 12 e- → 3 Pb0 (reduction)

4 B0 - 12 e- → 4 BIII (oxidation)

PbO2 is an oxidizing agent, B is a reducing agent.

Reactants:

  • PbO2 – Lead(IV) oxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Other names: Lead dioxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Plumbic oxide source: wikipedia, accessed: 2019-09-27, Plattnerite source: wikipedia, accessed: 2019-09-27, Lead peroxide source: ICSC, accessed: 2019-09-04
    • Appearance: Dark-brown, black powder source: wikipedia, accessed: 2019-09-27; Brown crystals or powder source: ICSC, accessed: 2019-09-04
  • B
    • Names: Boron source: wikidata, accessed: 2019-09-07, B source: wikidata, accessed: 2019-09-07, Element 5 source: wikidata, accessed: 2019-09-07, Boracium source: wikidata, accessed: 2019-09-07

Products:

  • Pb
    • Names: Lead source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Lead metal source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Plumbum source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02
    • Appearance: Bluish-white or silvery-grey solid in various forms. turns tarnished on exposure to air source: ICSC, accessed: 2019-09-04; A heavy, ductile, soft, gray solid. source: NIOSH NPG, accessed: 2019-09-02
  • B2O3
    • Names: Boron trioxide source: wikipedia, accessed: 2019-09-27source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Boron oxide source: wikipedia, accessed: 2019-09-27source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02source: wikidata, accessed: 2019-09-02, Diboron trioxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Appearance: White, glassy solid source: wikipedia, accessed: 2019-09-27; White hygroscopic powder or granules source: ICSC, accessed: 2019-09-04; Colorless, semitransparent lumps or hard, white, odorless crystals. source: NIOSH NPG, accessed: 2019-09-02