2 MnBr2 + 14 HNO3 + 7 PbO2 → 2 HMnO4 + 2 Br2 + 7 Pb(NO3)2 + 6 H2O
This is an oxidation-reduction (redox) reaction:
4 Br-I - 4 e- → 4 Br0 (oxidation)
2 MnII - 10 e- → 2 MnVII (oxidation)
7 PbIV + 14 e- → 7 PbII (reduction)
MnBr2 is a reducing agent, MnBr2 is a reducing agent, PbO2 is an oxidizing agent.
Reactants:
- MnBr2 – Manganese(II) bromide
- HNO3 – Nitric acid
- Other names: Aqua fortis , Spirit of niter , Eau forte
- Appearance: Colorless, yellow or red fuming liquid ; Colourless-to-yellow liquid with pungent odour ; Colorless, yellow, or red, fuming liquid with an acrid, suffocating odor. [Note: Often used in an aqueous solution. Fuming nitric acid is concentrated nitric acid that contains dissolved nitrogen dioxide.]
- PbO2 – Lead(IV) oxide
Products: