4 NaNO3 (aq) + 2 H2SO4 (aq) → 2 Na2SO4 (aq) + O2 (g) + 4 NO2 (l) + 2 H2O (l)
This is an oxidation-reduction (redox) reaction:
4 NV + 4 e- → 4 NIV (reduction)
2 O-II - 4 e- → 2 O0 (oxidation)
This is a gas evolution reaction, O2 is the formed gas.
Reactants:
Products:
- Na2SO4
- O2
- 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