4 Fe + KNO3 + 3 KOH → 2 K2O + 4 FeO + NH3
This is an oxidation-reduction (redox) reaction:
NV + 8 e- → N-III (reduction)
4 Fe0 - 8 e- → 4 FeII (oxidation)
KNO3 is an oxidizing agent, Fe is a reducing agent.
Reactants:
Products:
- K2O – Potassium oxide , Potassium oxidopotassium
- FeO – Iron(II) oxide
- 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.]