10 HNO2 + I2 2 HIO3 + 10 NO + 4 H2O

This is an oxidation-reduction (redox) reaction:

2 I0 - 10 e- 2 IV (oxidation)

10 NIII + 10 e- 10 NII (reduction)

I2 is a reducing agent, HNO2 is an oxidizing agent.

Reactants:

  • HNO2Nitrous acid source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02, Hydroxidooxidonitrogen source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02
    • Other names: HNO2 source: wikidata, accessed on: 2019-09-02, [NO(OH)] source: wikidata, accessed on: 2019-09-02, Nitrosyl hydroxide source: wikidata, accessed on: 2019-09-02, Dioxonitric acid source: wikidata, accessed on: 2019-09-02
    • Appearance: Pale blue solution source: wikipedia, accessed on: 2019-09-27
  • I2
    • Names: Iodine source: ICSC, accessed on: 2019-09-04source: NIOSH NPG, accessed on: 2019-09-02, Jod source: ICSC, accessed on: 2019-09-04, Iode source: ICSC, accessed on: 2019-09-04
    • Appearance: Bluish black or dark purple crystals with pungent odour source: ICSC, accessed on: 2019-09-04; Violet solid with a sharp, characteristic odor. source: NIOSH NPG, accessed on: 2019-09-02

Products:

  • HIO3
    • Names: Iodic acid source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02, Iodic(V) acid source: wikipedia, accessed on: 2019-09-27, [IO2(OH)] source: wikidata, accessed on: 2019-09-02
    • Appearance: White solid source: wikipedia, accessed on: 2019-09-27
  • NONitrogen monoxide source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02source: NIOSH NPG, accessed on: 2019-09-02, Oxidonitrogen(•) (additive) source: wikipedia, accessed on: 2019-09-27
    • Other names: Nitric oxide source: wikipedia, accessed on: 2019-09-27source: ICSC, accessed on: 2019-09-04source: NIOSH NPG, accessed on: 2019-09-02source: wikidata, accessed on: 2019-09-02, Nitrogen(II) oxide source: wikipedia, accessed on: 2019-09-27, Nitric oxide (radical) source: wikidata, accessed on: 2019-09-02
    • Appearance: Colourless gas source: wikipedia, accessed on: 2019-09-27; Colourless compressed gas source: ICSC, accessed on: 2019-09-04; Colorless gas. [Note: Shipped as a nonliquefied compressed gas.] source: NIOSH NPG, accessed on: 2019-09-02
  • 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