3 FeI2 + 22 HNO3 3 Fe(NO3)3 + 6 HIO3 + 13 NO + 8 H2O

This is an oxidation-reduction (redox) reaction:

6 I-I - 36 e- 6 IV (oxidation)

13 NV + 39 e- 13 NII (reduction)

3 FeII - 3 e- 3 FeIII (oxidation)

FeI2 is a reducing agent, HNO3 is an oxidizing agent, FeI2 is a reducing agent.

Reactants:

  • FeI2Iron(II) iodide source: wikipedia, accessed on: 2019-09-27
    • Other names: Ferrous iodide source: wikidata, accessed on: 2019-09-02
    • Appearance: White to off-white powder source: wikipedia, accessed on: 2019-09-27
  • HNO3Nitric acid source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02source: NIOSH NPG, accessed on: 2019-09-02
    • Other names: Aqua fortis source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02source: NIOSH NPG, accessed on: 2019-09-02, Spirit of niter source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02, Eau forte source: wikipedia, accessed on: 2019-09-27
    • Appearance: Colorless, yellow or red fuming liquid source: wikipedia, accessed on: 2019-09-27; Colourless-to-yellow liquid with pungent odour source: ICSC, accessed on: 2019-09-04; Colorless, yellow, or red, fuming liquid with an acrid, suffocating odor. [Note: Often used in an aqueous solution. Fuming nitric acid is concentrated nitric acid that contains dissolved nitrogen dioxide.] source: NIOSH NPG, accessed on: 2019-09-02

Products:

  • Fe(NO3)3Iron(III) nitrate source: wikipedia, accessed on: 2019-09-27
    • Other names: Ferric nitrate source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02, Nitric acid source: wikipedia, accessed on: 2019-09-27, Iron(3+) salt source: wikipedia, accessed on: 2019-09-27, Iron (III) nitrate source: wikidata, accessed on: 2019-09-02
    • Appearance: Pale violet crystals | hygroscopic source: wikipedia, accessed on: 2019-09-27
  • 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