8 KMnO4 (aq) + 5 NH3 (aq) + 12 H2SO4 (aq) → 5 HNO3 (aq) + 8 MnSO4 (aq) + 4 K2SO4 (aq) + 17 H2O (l)
This is an acid-base reaction (neutralization): NH3 is a base, H2SO4 is an acid.
This is an oxidation-reduction (redox) reaction:
8 MnVII + 40 e- → 8 MnII (reduction)
5 N-III - 40 e- → 5 NV (oxidation)
KMnO4 is an oxidizing agent, NH3 is a reducing agent.
Reactants:
- KMnO4 – Potassium manganate(VII)
- NH3
- Names: Ammonia , Azane (only intended for use in naming derivatives of ammonia) , Hydrogen nitride
- Appearance: Colourless gas ; Colourless gas or compressed liquefied gas with pungent odour ; Colorless gas with a pungent, suffocating odor. [Note: Shipped as a liquefied compressed gas. Easily liquefied under pressure.]
- H2SO4 – Sulfuric acid
Products:
- 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.]
- MnSO4 – Manganese(II) sulfate
- K2SO4
- H2O – Water, oxidane