CH3CHO + 4 NaOH + 3 I2 → CHI3 + HCOONa + 3 NaIH2O

This is an oxidation-reduction (redox) reaction:

CI - 1 e- → CII (oxidation)

C-III - 5 e- → CII (oxidation)

6 I0 + 6 e- → 6 I-I (reduction)

CH3CHO is a reducing agent, CH3CHO is a reducing agent, I2 is an oxidizing agent.

Reactants:

  • CH3CHO – Acetaldehyde source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Ethanal source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02
    • Other names: Acetic aldehyde source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Ethyl aldehyde source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Acetylaldehyde source: wikipedia, accessed: 2019-09-27, NSC 7594 source: wikidata, accessed: 2019-09-02
    • Appearance: Colourless liquid source: wikipedia, accessed: 2019-09-27; Gas or colourless liquid with pungent odour source: ICSC, accessed: 2019-09-04; Colorless liquid or gas (above 69°F) with a pungent, fruity odor. source: NIOSH NPG, accessed: 2019-09-02
  • 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
  • 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

Products:

  • CHI3
    • Names: Iodoform source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02, Triiodomethane source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02, Jodoform source: wikidata, accessed: 2019-09-02
    • Appearance: Yellow to greenish-yellow powder or crystalline solid with a pungent, disagreeable odor. [antiseptic for external use] source: NIOSH NPG, accessed: 2019-09-02
  • HCOONa – Sodium methanoate source: wikipedia, accessed: 2019-09-28source: wikidata, accessed: 2019-09-02
    • Other names: Sodium formate source: wikipedia, accessed: 2019-09-28source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Formic acid source: wikipedia, accessed: 2019-09-28, Sodium salt source: wikipedia, accessed: 2019-09-28
    • Appearance: White granules | deliquescent source: wikipedia, accessed: 2019-09-28; Hygroscopic white granules or crystalline powder source: ICSC, accessed: 2019-09-04
  • NaIH2O