([Fe(CN)6])3- + 10 Cr2O72- + 80 H+ → 20 (Cr)3+ + 6 NO3- + Fe3+ + 6 CO2 + 40 H2O

This is an oxidation-reduction (redox) reaction:

6 CII - 12 e- → 6 CIV (oxidation)

6 N-III - 48 e- → 6 NV (oxidation)

20 CrVI + 60 e- → 20 CrIII (reduction)

[Fe(CN)6]3- is a reducing agent, [Fe(CN)6]3- is a reducing agent, Cr2O72- is an oxidizing agent.

Reactants:

  • [Fe(CN)6]3-
  • Cr2O72-
  • H+

Products:

  • Cr3+
  • NO3- – Nitrate source: wikipedia, accessed: 2019-09-27
    • Other names: Nitrate ion source: wikidata, accessed: 2019-09-07, NO3(-) source: wikidata, accessed: 2019-09-07, [NO3](-) source: wikidata, accessed: 2019-09-07
  • Fe3+
  • CO2
    • Names: Carbon dioxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, {{plainlist| source: wikipedia, accessed: 2019-09-27, CO2 source: wikidata, accessed: 2019-09-02
    • Appearance: Colorless gas source: wikipedia, accessed: 2019-09-27; Odourless colourless compressed liquefied gas source: ICSC, accessed: 2019-09-04; Colorless, odorless gas. [Note: Shipped as a liquefied compressed gas. Solid form is utilized as dry ice.] 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