OsO4 + 4 HCl + 2 KCl → K2(OsCl4O2) + Cl2 + 2 H2O
This is an oxidation-reduction (redox) reaction:
OsVIII + 2 e- → OsVI (reduction)
2 Cl-I - 2 e- → 2 Cl0 (oxidation)
Reactants:
- OsO4 – Osmium tetraoxide , Tetraoxoosmium
- Other names: Osmium tetroxide , Osmium(VIII) oxide , Osmic acid anhydride
- Appearance: White volatile solid ; Colourless-to-pale-yellow solid in various forms with pungent odour ; Colorless, crystalline solid or pale-yellow mass with an unpleasant, acrid, chlorine-like odor. [Note: A liquid above 105°F.]
- 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.]
- KCl
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