P + Ca + 2 O2 → CaPO4

This is an oxidation-reduction (redox) reaction:

P0 - 6 e- → PVI (oxidation)

Ca0 - 2 e- → CaII (oxidation)

4 O0 + 8 e- → 4 O-II (reduction)

P is a reducing agent, Ca is a reducing agent, O2 is an oxidizing agent.

Reactants:

  • P
    • Ca
      • Names: Calcium source: wikidata, accessed: 2019-09-07, Calcium (powder) source: ICSC, accessed: 2019-09-04, Ca source: wikidata, accessed: 2019-09-07
      • Appearance: Silvery-white-to-grey powder source: ICSC, accessed: 2019-09-04
    • 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:

    • CaPO4