8 Fe + 30 HNO3 → 8 Fe(NO3)3 + 3 NH4NO3 + 9 H2O
This is an oxidation-reduction (redox) reaction:
3 NV + 24 e- → 3 N-III (reduction)
8 Fe0 - 24 e- → 8 FeIII (oxidation)
HNO3 is an oxidizing agent, Fe is a reducing agent.
Reactants:
- Fe
- 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.]
Products: