16 Cu + S8 8 Cu2S

This is an oxidation-reduction (redox) reaction:

16 Cu0 - 16 e- 16 CuI (oxidation)

8 S0 + 16 e- 8 S-II (reduction)

Cu is a reducing agent, S8 is an oxidizing agent.

Reactants:

  • Cu
    • Names: Copper source: wikidata, accessed: 2019-09-07source: ICSC, accessed: 2019-09-04, Copper (dusts and mists, as Cu) source: NIOSH NPG, accessed: 2019-09-02, Cu source: wikidata, accessed: 2019-09-07
    • Appearance: Solid in various forms. turns green on exposure to moist air source: ICSC, accessed: 2019-09-04; Reddish, lustrous, malleable, odorless solid. source: NIOSH NPG, accessed: 2019-09-02
  • S8
    • Names: Sulfur source: wikidata, accessed: 2019-09-07source: ICSC, accessed: 2019-09-04, S source: wikidata, accessed: 2019-09-07, Sulphur source: wikidata, accessed: 2019-09-07source: ICSC, accessed: 2019-09-04
    • Appearance: Yellow solid in various forms source: ICSC, accessed: 2019-09-04

Products:

  • Cu2SCopper(I) Sulphide source: wikipedia, accessed: 2019-09-27
    • Other names: Copper(I) sulfide source: wikipedia, accessed: 2019-09-27, Cuprous sulfide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Chalcocite source: wikipedia, accessed: 2019-09-27