2 CrI3 + 21 Cl2 + 26 H2O → 2 H2CrO4 + 6 HIO3 + 42 HCl
This is an oxidation-reduction (redox) reaction:
6 I-I - 36 e- → 6 IV (oxidation)
42 Cl0 + 42 e- → 42 Cl-I (reduction)
2 CrIII - 6 e- → 2 CrVI (oxidation)
CrI3 is a reducing agent, Cl2 is an oxidizing agent, CrI3 is a reducing agent.
Reactants:
Products:
- H2CrO4 – Chromic acid , Dihydroxidodioxidochromium
- HIO3
- 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.]