BaSO4 (s) + 4 C (s) → BaS (s) + 4 CO (g)

This is an oxidation-reduction (redox) reaction:

SVI + 8 e- → S-II (reduction)

4 C0 - 8 e- → 4 CII (oxidation)

BaSO4 is an oxidizing agent, C is a reducing agent.

Reactants:

  • BaSO4
    • Names: Barium sulfate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Artificial barite source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Barite source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02
    • Appearance: White crystalline source: wikipedia, accessed: 2019-09-27; Odourless tasteless white or yellowish crystals or powder source: ICSC, accessed: 2019-09-04; White or yellowish, odorless powder. source: NIOSH NPG, accessed: 2019-09-02
  • 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:

  • BaS
    • Names: Barium sulfide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Bariumsulfid source: wikidata, accessed: 2019-09-02, Barium sulphide source: wikidata, accessed: 2019-09-02
    • Appearance: White solid source: wikipedia, accessed: 2019-09-27
  • CO – Carbon monoxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02
    • Other names: Carbon monooxide source: wikipedia, accessed: 2019-09-27, Carbonous oxide source: wikipedia, accessed: 2019-09-27, Carbon(II) oxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Appearance: Colorless gas source: wikipedia, accessed: 2019-09-27; Odourless tasteless colourless compressed gas source: ICSC, accessed: 2019-09-04; Colorless, odorless gas. [Note: Shipped as a nonliquefied or liquefied compressed gas.] source: NIOSH NPG, accessed: 2019-09-02