2 B (s) + 3 Br2 (aq) → 2 BBr3 (l)

This is an oxidation-reduction (redox) reaction:

6 Br0 + 6 e- → 6 Br-I (reduction)

2 B0 - 6 e- → 2 BIII (oxidation)

Br2 is an oxidizing agent, B is a reducing agent.

Reactants:

  • B
    • Names: Boron source: wikidata, accessed: 2019-09-07, B source: wikidata, accessed: 2019-09-07, Element 5 source: wikidata, accessed: 2019-09-07, Boracium source: wikidata, accessed: 2019-09-07
  • 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

Products:

  • BBr3 – Boron tribromide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02
    • Other names: Tribromoborane source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Boron bromide source: wikipedia, accessed: 2019-09-27source: ICSC, accessed: 2019-09-04source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02, Boron(III) bromide source: ICSC, accessed: 2019-09-04
    • Appearance: Colorless to amber liquid source: wikipedia, accessed: 2019-09-27; Colourless fuming liquid with pungent odour source: ICSC, accessed: 2019-09-04; Colorless, fuming liquid with a sharp, irritating odor. source: NIOSH NPG, accessed: 2019-09-02