Br2 (aq) + C2H4 (g) → C2H4Br2 (l)

This is an oxidation-reduction (redox) reaction:

2 Br0 + 2 e- → 2 Br-I (reduction)

2 C-II - 2 e- → 2 C-I (oxidation)

Br2 is an oxidizing agent, C2H4 is a reducing agent.

Reactants:

  • 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
  • C2H4 – Ethene source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Other names: Ethylene source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, CH2=CH2 source: wikidata, accessed: 2019-09-02, H2C=CH2 source: wikidata, accessed: 2019-09-02, R-1150 source: wikidata, accessed: 2019-09-02
    • Appearance: Colorless gas source: wikipedia, accessed: 2019-09-27; Colourless compressed gas with characteristic odour source: ICSC, accessed: 2019-09-04

Products:

  • C2H4Br2
    • Names: 1,2-dibromoethane source: wikidata, accessed: 2019-09-02, Ethylene dibromide source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02source: wikidata, accessed: 2019-09-02, Ethylene bromide source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02
    • Appearance: Colourless liquid with characteristic odour. turns brown on exposure to light source: ICSC, accessed: 2019-09-04; Colorless liquid or solid (below 50°F) with a sweet odor. [fumigant] source: NIOSH NPG, accessed: 2019-09-02