3 RhF6 + 10 H2O → 2 HRhO4 + RhO2 + 18 HF

This is an oxidation-reduction (redox) reaction:

2 RhVI - 2 e- → 2 RhVII (oxidation)

RhVI + 2 e- → RhIV (reduction)

RhF6 is both an oxidizing and a reducing agent (disproportionation (dismutation)).

Reactants:

  • RhF6 – Rhodium(VI) fluoride source: wikipedia, accessed: 2019-09-27
    • Other names: Rhodium hexafluoride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Appearance: Black crystalline solid source: wikipedia, accessed: 2019-09-27
  • 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:

  • HRhO4
  • RhO2
  • HF – Fluorane source: wikipedia, accessed: 2019-09-27source: wikipedia, accessed: 2019-09-27
    • Other names: Hydrofluoric acid source: wikipedia, accessed: 2019-09-27source: NIOSH NPG, accessed: 2019-09-02, Hydrogen fluoride source: wikipedia, accessed: 2019-09-27source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Fluorhydric acid source: wikipedia, accessed: 2019-09-27
    • Appearance: Colorless solution source: wikipedia, accessed: 2019-09-27; Colourless gas or colourless liquid (below 19.5 °C) source: wikipedia, accessed: 2019-09-27; Colourless gas or colourless fuming liquid with pungent odour source: ICSC, accessed: 2019-09-04; Colourless fuming liquid with pungent odour source: ICSC, accessed: 2019-09-04; Colorless gas or fuming liquid (below 67°F) with a strong, irritating odor. [Note: Shipped in cylinders.] source: NIOSH NPG, accessed: 2019-09-02