P4 + 6 Cl2 → 4 PCl3

This is an oxidation-reduction (redox) reaction:

4 P0 - 12 e- → 4 PIII (oxidation)

12 Cl0 + 12 e- → 12 Cl-I (reduction)

P4 is a reducing agent, Cl2 is an oxidizing agent.

Reactants:

  • P4
  • Cl2
    • Names: Chlorine source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Molecular chlorine source: NIOSH NPG, accessed: 2019-09-02
    • Appearance: Greenish-yellow compressed liquefied gas with pungent odour source: ICSC, accessed: 2019-09-04; Greenish-yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.] source: NIOSH NPG, accessed: 2019-09-02

Products:

  • PCl3 – Phosphorus trichloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02
    • Other names: Phosphorus(III) chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Phosphorous chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, [PCl3] source: wikidata, accessed: 2019-09-02
    • Appearance: Colorless to yellow fuming liquid source: wikipedia, accessed: 2019-09-27; Colourless or yellow fuming liquid with pungent odour source: ICSC, accessed: 2019-09-04; Colorless to yellow, fuming liquid with an odor like hydrochloric acid. source: NIOSH NPG, accessed: 2019-09-02