C6H8O6 + I2 + H2O → C6H8O7 + 2 H+ + 2 (I)-

This is an oxidation-reduction (redox) reaction:

6 C2/3 - 2 e- → 6 CI (oxidation)

2 I0 + 2 e- → 2 I-I (reduction)

C6H8O6 is a reducing agent, I2 is an oxidizing agent.

Reactants:

  • C6H8O6
    • Names: Vitamin C source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Ascorbic acid source: ICSC, accessed: 2019-09-04, Cevalin source: wikidata, accessed: 2019-09-02
    • Appearance: Odourless white-to-slightly-yellow crystals or powder source: ICSC, accessed: 2019-09-04
  • 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
  • H2O – Water, 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

Products:

  • C6H8O7 – 2-Hydroxypropane-1,2,3-tricarboxylic acid source: wikipedia, accessed: 2019-09-27
    • Other names: Citric acid source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Citrate source: wikidata, accessed: 2019-09-02, H3cit source: wikidata, accessed: 2019-09-02
    • Appearance: Crystalline white solid source: wikipedia, accessed: 2019-09-27; Colourless crystals source: ICSC, accessed: 2019-09-04
  • H+
  • I-