2 KBr (aq) + C6H6 (l) + Cl2 (g) → 2 KCl (aq) + HBr (aq) + C6H5Br (l)

This is an oxidation-reduction (redox) reaction:

6 C-I - 2 e- → 6 C-2/3 (oxidation)

2 Cl0 + 2 e- → 2 Cl-I (reduction)

C6H6 is a reducing agent, Cl2 is an oxidizing agent.

Reactants:

  • KBr
    • Names: Potassium bromide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, KBr source: wikidata, accessed: 2019-09-02, Kaliumbromid source: wikidata, accessed: 2019-09-02
    • Appearance: White solid source: wikipedia, accessed: 2019-09-27
  • C6H6 – Benzene source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02
    • Other names: Benzol (historic/German) source: wikipedia, accessed: 2019-09-27, Cyclohexa-1 source: wikipedia, accessed: 2019-09-27, 3 source: wikipedia, accessed: 2019-09-27
    • Appearance: Colorless liquid source: wikipedia, accessed: 2019-09-27; Colourless liquid with characteristic odour source: ICSC, accessed: 2019-09-04; Colorless to light-yellow liquid with an aromatic odor. [Note: A solid below 42°F.] source: NIOSH NPG, accessed: 2019-09-02
  • 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:

  • KCl
    • Names: Potassium chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Sylvite source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Muriate of potash source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Appearance: White crystalline solid source: wikipedia, accessed: 2019-09-27; Colourless hygroscopic crystals source: ICSC, accessed: 2019-09-04
  • HBr – Hydrogen bromide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Bromane source: wikipedia, accessed: 2019-09-27source: wikipedia, accessed: 2019-09-27
    • Other names: Hydrobromic acid source: wikipedia, accessed: 2019-09-27source: ICSC, accessed: 2019-09-04, Hydronium bromide source: wikipedia, accessed: 2019-09-27, HBr source: wikidata, accessed: 2019-09-02
    • Appearance: Colorless gas source: wikipedia, accessed: 2019-09-27; Colorless/faint yellow liquid source: wikipedia, accessed: 2019-09-27; Colourless compressed liquefied gas with pungent odour source: ICSC, accessed: 2019-09-04; Colorless gas with a sharp, irritating odor. [Note: Shipped as a liquefied compressed gas. Often used in an aqueous solution.] source: NIOSH NPG, accessed: 2019-09-02
  • C6H5Br – Bromobenzene source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Other names: Phenyl Bromide source: wikipedia, accessed: 2019-09-27, Bromobenzol source: wikipedia, accessed: 2019-09-27, Monobromobenzene source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Appearance: Colourless liquid source: wikipedia, accessed: 2019-09-27; Colourless liquid with characteristic odour source: ICSC, accessed: 2019-09-04