2 CrI3 + 64 NaOH + 27 Cl2 6 NaIO4 + 2 Na2CrO4 + 54 NaCl + 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: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Other names: Chromium triiodide source: wikipedia, accessed: 2019-09-27, Chromic iodide source: wikipedia, accessed: 2019-09-27
    • Appearance: Black solid source: wikipedia, accessed: 2019-09-27
  • NaOH
    • Names: Sodium hydroxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Caustic soda source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Lye source: wikidata, accessed: 2019-09-02
    • Appearance: White, waxy, opaque crystals source: wikipedia, accessed: 2019-09-27; White hygroscopic solid in various forms source: ICSC, accessed: 2019-09-04; Colorless to white, odorless solid (flakes, beads, granular form). 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:

  • NaIO4Sodium periodate source: wikipedia, accessed: 2019-09-27
    • Other names: Sodium metaperiodate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, NaIO4 source: wikidata, accessed: 2019-09-02, Periodic acid, sodium salt source: wikidata, accessed: 2019-09-02, Sodium m-periodate source: wikidata, accessed: 2019-09-02
    • Appearance: White crystals source: wikipedia, accessed: 2019-09-27
  • Na2CrO4Sodium chromate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Other names: Chromic acid source: wikipedia, accessed: 2019-09-27, (Na2CrO4) source: wikipedia, accessed: 2019-09-27, Disodium salt source: wikipedia, accessed: 2019-09-27
    • Appearance: Yellow crystals source: wikipedia, accessed: 2019-09-27; Yellow hygroscopic crystals source: ICSC, accessed: 2019-09-04
  • NaClSodium chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Other names: {{unbulleted list source: wikipedia, accessed: 2019-09-27, Salt source: wikidata, accessed: 2019-09-02, Table salt source: wikidata, accessed: 2019-09-02
    • Appearance: Colorless cubic crystals source: wikipedia, accessed: 2019-09-27
  • H2OWater, oxidane source: wikipedia, accessed: 2019-09-27
    • Other names: Water (H2O) source: wikipedia, accessed: 2019-09-27, Hydrogen hydroxide (HH or HOH) source: wikipedia, accessed: 2019-09-27, Hydrogen oxide source: wikipedia, accessed: 2019-09-27
    • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas source: wikipedia, accessed: 2019-09-27