2 CrI3 + 64 KOH + 27 Cl2 2 K2CrO4 + 6 KIO4 + 54 KCl + 32 H2O

This is an oxidation-reduction (redox) reaction:

6 I-I - 48 e- 6 IVII (oxidation)

54 Cl0 + 54 e- 54 Cl-I (reduction)

2 CrIII - 6 e- 2 CrVI (oxidation)

CrI3 is a reducing agent, Cl2 is an oxidizing agent, CrI3 is a reducing agent.

Reactants:

  • CrI3Chromium(III) iodide source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02
    • Other names: Chromium triiodide source: wikipedia, accessed on: 2019-09-27, Chromic iodide source: wikipedia, accessed on: 2019-09-27
    • Appearance: Black solid source: wikipedia, accessed on: 2019-09-27
  • KOHPotassium hydroxide source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02source: ICSC, accessed on: 2019-09-04source: NIOSH NPG, accessed on: 2019-09-02
    • Other names: Caustic potash source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02source: ICSC, accessed on: 2019-09-04source: NIOSH NPG, accessed on: 2019-09-02, Lye source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02, Potash lye source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02
    • Appearance: White solid, deliquescent source: wikipedia, accessed on: 2019-09-27; White hygroscopic solid in various forms source: ICSC, accessed on: 2019-09-04; Odorless, white or slightly yellow lumps, rods, flakes, sticks, or pellets. [Note: May be used as an aqueous solution.] source: NIOSH NPG, accessed on: 2019-09-02
  • Cl2
    • Names: Chlorine source: ICSC, accessed on: 2019-09-04source: NIOSH NPG, accessed on: 2019-09-02, Molecular chlorine source: NIOSH NPG, accessed on: 2019-09-02
    • Appearance: Greenish-yellow compressed liquefied gas with pungent odour source: ICSC, accessed on: 2019-09-04; Greenish-yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.] source: NIOSH NPG, accessed on: 2019-09-02

Products:

  • K2CrO4Potassium chromate source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02source: ICSC, accessed on: 2019-09-04
    • Other names: Chromic acid source: wikipedia, accessed on: 2019-09-27, (K2CrO4) source: wikipedia, accessed on: 2019-09-27, Dipotassium salt source: wikipedia, accessed on: 2019-09-27
    • Appearance: Yellow powder source: wikipedia, accessed on: 2019-09-27; Yellow crystals source: ICSC, accessed on: 2019-09-04
  • KIO4Potassium periodate source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02
    • Other names: Potassium metaperiodate source: wikipedia, accessed on: 2019-09-27
    • Appearance: White crystalline powder source: wikipedia, accessed on: 2019-09-27
  • KCl
    • Names: Potassium chloride source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02source: ICSC, accessed on: 2019-09-04, Sylvite source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02, Muriate of potash source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02
    • Appearance: White crystalline solid source: wikipedia, accessed on: 2019-09-27; Colourless hygroscopic crystals source: ICSC, accessed on: 2019-09-04
  • H2OWater, oxidane source: wikipedia, accessed on: 2019-09-27
    • Other names: Water (H2O) source: wikipedia, accessed on: 2019-09-27, Hydrogen hydroxide (HH or HOH) source: wikipedia, accessed on: 2019-09-27, Hydrogen oxide source: wikipedia, accessed on: 2019-09-27
    • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas source: wikipedia, accessed on: 2019-09-27