CuS + 2 O2 → CuSO4

This is an oxidation-reduction (redox) reaction:

S-II - 8 e- → SVI (oxidation)

4 O0 + 8 e- → 4 O-II (reduction)

CuS is a reducing agent, O2 is an oxidizing agent.

Reactants:

  • CuS – Copper sulfide source: wikipedia, accessed: 2019-09-27
    • Other names: Copper monosulfide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Covellite source: wikipedia, accessed: 2019-09-27, Copper(II) sulfide source: wikipedia, accessed: 2019-09-27, Cupric sulfide source: wikipedia, accessed: 2019-09-27
    • Appearance: Black powder or lumps source: wikipedia, accessed: 2019-09-27
  • O2
    • Names: Dioxygen source: wikidata, accessed: 2019-09-07, Oxygen source: ICSC, accessed: 2019-09-04source: wikidata, accessed: 2019-09-07, Oxygen (liquefied) source: ICSC, accessed: 2019-09-04
    • Appearance: Odourless compressed gas source: ICSC, accessed: 2019-09-04; Liquefied gas. colourless-to-blue extremely cold liquid source: ICSC, accessed: 2019-09-04

Products:

  • CuSO4 – Copper(II) sulfate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Other names: Cupric sulphate source: wikipedia, accessed: 2019-09-27source: ICSC, accessed: 2019-09-04, Blue vitriol (pentahydrate) source: wikipedia, accessed: 2019-09-27, Bluestone (pentahydrate) source: wikipedia, accessed: 2019-09-27
    • Appearance: Gray-white (anhydrous) | blue (pentahydrate) source: wikipedia, accessed: 2019-09-27; White hygroscopic crystals source: ICSC, accessed: 2019-09-04