Ti + 4 NO3- + 8 H+ → (Ti)4+ + 4 NO2 + 4 H2O
This is an oxidation-reduction (redox) reaction:
Ti0 - 4 e- → TiIV (oxidation)
4 NV + 4 e- → 4 NIV (reduction)
Ti is a reducing agent, NO3- is an oxidizing agent.
Reactants:
Products:
- Ti4+
- NO2 – Nitrogen dioxide
- Other names: Nitrogen(IV) oxide , Deutoxide of nitrogen , Nitrogen peroxide
- Appearance: Brown gas ; Reddish-brown gas or brown or yellow liquid with pungent odour ; Yellowish-brown liquid or reddish-brown gas (above 70°F) with a pungent, acrid odor. [Note: In solid form (below 15°F) it is found structurally as N2O4.]
- H2O – Water, oxidane