3 N2O4 (l) + 2 H2O (l) → 4 HNO3 (aq) + 2 NO (g)
This is an oxidation-reduction (redox) reaction:
2 NIV + 4 e- → 2 NII (reduction)
4 NIV - 4 e- → 4 NV (oxidation)
N2O4 is both an oxidizing and a reducing agent (disproportionation (dismutation)).
Reactants:
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.]
- NO – Nitrogen monoxide , Oxidonitrogen(•) (additive)