2 (Cu)2+ + 4 (I)- 2 CuI + I2

This is an oxidation-reduction (redox) reaction:

2 CuII + 2 e- 2 CuI (reduction)

2 I-I - 2 e- 2 I0 (oxidation)

Cu2+ is an oxidizing agent, I- is a reducing agent.

Reactants:

  • Cu2+
  • I-

Products:

  • CuICopper(I) iodide source: wikipedia, accessed: 2019-09-27
    • Other names: Cuprous iodide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Appearance: White powder | when impure: tan or brownish source: wikipedia, accessed: 2019-09-27
  • I2
    • Names: Iodine source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Jod source: ICSC, accessed: 2019-09-04, Iode source: ICSC, accessed: 2019-09-04
    • Appearance: Bluish black or dark purple crystals with pungent odour source: ICSC, accessed: 2019-09-04; Violet solid with a sharp, characteristic odor. source: NIOSH NPG, accessed: 2019-09-02