3 H2 (g) + 2 P (s) → 2 PH3 (g)

This is an oxidation-reduction (redox) reaction:

2 P0 + 6 e- → 2 P-III (reduction)

6 H0 - 6 e- → 6 HI (oxidation)

P is an oxidizing agent, H2 is a reducing agent.

Reactants:

  • H2
    • Names: Dihydrogen source: wikidata, accessed: 2019-09-07, Hydrogen source: ICSC, accessed: 2019-09-04source: wikidata, accessed: 2019-09-07, H2 source: wikidata, accessed: 2019-09-07
    • Appearance: Odourless colourless compressed gas source: ICSC, accessed: 2019-09-04
  • P

    Products:

    • PH3 – Phosphane source: wikipedia, accessed: 2019-09-27
      • Other names: Phosphine source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Phosphamine source: wikipedia, accessed: 2019-09-27, Phosphorus trihydride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02
      • Appearance: Colorless gas source: wikipedia, accessed: 2019-09-27; Colourless compressed liquefied gas source: ICSC, accessed: 2019-09-04; Colorless gas with a fish- or garlic-like odor. [pesticide] [Note: Shipped as a liquefied compressed gas. Pure compound is odorless.] source: NIOSH NPG, accessed: 2019-09-02