3 As2O3 (s) + 2 KBrO3 (aq) + 2 HCl (aq) → 3 As2O5 (aq) + 2 HBr (aq) + 2 KCl (aq)
This is an oxidation-reduction (redox) reaction:
2 BrV + 12 e- → 2 Br-I (reduction)
6 AsIII - 12 e- → 6 AsV (oxidation)
KBrO3 is an oxidizing agent, As2O3 is a reducing agent.
Reactants:
- As2O3 – Diarsenic trioxide
- KBrO3 – Potassium bromate
- 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.]
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