P4 + 3 O2 → 2 P2O3

This is an oxidation-reduction (redox) reaction:

4 P0 - 12 e- → 4 PIII (oxidation)

6 O0 + 12 e- → 6 O-II (reduction)

P4 is a reducing agent, O2 is an oxidizing agent.

Reactants:

  • P4
  • 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:

  • P2O3
    • Names: Phosphorus trioxide source: wikipedia, accessed: 2019-09-27, Phosphorus(III) oxide source: wikipedia, accessed: 2019-09-27, Phosphorus sesquioxide source: wikipedia, accessed: 2019-09-27
    • Appearance: Colourless monoclinic crystals or liquid source: wikipedia, accessed: 2019-09-27