3 FeSO4*7H2O + 4 HNO3 → Fe(NO3)3 + NO + Fe2(SO4)3 + 23 H2O
This is an oxidation-reduction (redox) reaction:
NV + 3 e- → NII (reduction)
3 FeII - 3 e- → 3 FeIII (oxidation)
HNO3 is an oxidizing agent, FeSO4*7H2O is a reducing agent.
Reactants:
- FeSO4*7H2O
- 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: