6 ClO2 + 3 H2O → 5 HClO3 + HCl
This is an oxidation-reduction (redox) reaction:
ClIV + 5 e- → Cl-I (reduction)
5 ClIV - 5 e- → 5 ClV (oxidation)
ClO2 is both an oxidizing and a reducing agent (disproportionation (dismutation)).
Reactants:
- ClO2 – Chlorine dioxide , 4-chlorane (substitutive) OR Dioxidochlorine(•) (additive) -->
- H2O – Water, oxidane
Products:
- HClO3
- HCl – Chlorane , Hydrogen chloride
- Other names: Hydrochloric acid , M , Uriatic acid
- Appearance: Colorless, transparent liquid, fumes in air if concentrated ; Colorless gas ; Colourless compressed liquefied gas with pungent odour ; Colorless to slightly yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]