3 Cl2 + 2 AlBr3 → 2 AlCl3 + 3 Br2

This is an oxidation-reduction (redox) reaction:

6 Br-I - 6 e- → 6 Br0 (oxidation)

6 Cl0 + 6 e- → 6 Cl-I (reduction)

AlBr3 is a reducing agent, Cl2 is an oxidizing agent.

Reactants:

  • 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
  • AlBr3 – Aluminium bromide source: wikipedia, accessed: 2019-09-27
    • Other names: Aluminic bromide source: wikipedia, accessed: 2019-09-27, Aluminum bromide source: wikidata, accessed: 2019-09-02
    • Appearance: White to pale yellow powder source: wikipedia, accessed: 2019-09-27

Products:

  • AlCl3 – Aluminium chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Other names: Aluminium(III) chloride source: wikipedia, accessed: 2019-09-27source: ICSC, accessed: 2019-09-04, Aluminum trichloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Aluminum chloride source: wikidata, accessed: 2019-09-02
    • Appearance: White or pale yellow solid | hygroscopic source: wikipedia, accessed: 2019-09-27; Colourless-to-white powder. turns grey-to-yellow on exposure to moisture source: ICSC, accessed: 2019-09-04
  • Br2
    • Names: Bromine source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Molecular bromine source: NIOSH NPG, accessed: 2019-09-02
    • Appearance: Fuming red-to-brown liquid with pungent odour source: ICSC, accessed: 2019-09-04; Dark reddish-brown, fuming liquid with suffocating, irritating fumes. source: NIOSH NPG, accessed: 2019-09-02