Cl2 + 2 K → 2 KCl

This is an oxidation-reduction (redox) reaction:

2 Cl0 + 2 e- → 2 Cl-I (reduction)

2 K0 - 2 e- → 2 KI (oxidation)

Cl2 is an oxidizing agent, K is a reducing 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
  • K
    • Names: Potassium source: wikidata, accessed: 2019-09-07source: ICSC, accessed: 2019-09-04, K source: wikidata, accessed: 2019-09-07, Element 19 source: wikidata, accessed: 2019-09-07, Kalium source: wikidata, accessed: 2019-09-07source: ICSC, accessed: 2019-09-04
    • Appearance: White-to-grey lumps source: ICSC, accessed: 2019-09-04

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