2 Bi2O3 (s) + 3 C (s) → 4 Bi (s) + 3 CO2 (g)

This is an oxidation-reduction (redox) reaction:

3 C0 - 12 e- → 3 CIV (oxidation)

4 BiIII + 12 e- → 4 Bi0 (reduction)

C is a reducing agent, Bi2O3 is an oxidizing agent.

Reactants:

  • Bi2O3 – Bismuth trioxide source: wikipedia, accessed: 2019-09-27, Bismuth(III) oxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Bismite (mineral) source: wikipedia, accessed: 2019-09-27
    • Other names: Bismite source: wikipedia, accessed: 2019-09-27, Bismuth sesquioxide source: wikipedia, accessed: 2019-09-27
    • Appearance: Yellow crystals or powder source: wikipedia, accessed: 2019-09-27
  • C
    • Names: Carbon black source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Acetylene black source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Channel black source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02
    • Appearance: Odourless black pellets or extremely fine powder source: ICSC, accessed: 2019-09-04; Black, odorless solid. source: NIOSH NPG, accessed: 2019-09-02

Products:

  • Bi
    • Names: Bismuth source: wikidata, accessed: 2019-09-07, Bi source: wikidata, accessed: 2019-09-07, Element 83 source: wikidata, accessed: 2019-09-07, 83Bi source: wikidata, accessed: 2019-09-07
  • CO2
    • Names: Carbon dioxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, {{plainlist| source: wikipedia, accessed: 2019-09-27, CO2 source: wikidata, accessed: 2019-09-02
    • Appearance: Colorless gas source: wikipedia, accessed: 2019-09-27; Odourless colourless compressed liquefied gas source: ICSC, accessed: 2019-09-04; Colorless, odorless gas. [Note: Shipped as a liquefied compressed gas. Solid form is utilized as dry ice.] source: NIOSH NPG, accessed: 2019-09-02