Na2SO3 + 3 H2SO4 → 2 NaSO4 + 3 H2O + 2 SO2
This is an acid-base reaction (neutralization): Na2SO3 is a base, H2SO4 is an acid.
This is an oxidation-reduction (redox) reaction:
2 SVI - 2 e- → 2 SVII (oxidation)
SVI + 2 e- → SIV (reduction)
H2SO4 is both an oxidizing and a reducing agent (disproportionation (dismutation)).
Reactants:
Products:
- NaSO4
- H2O – Water, oxidane
- SO2 – Sulfur dioxide
- Other names: Sulfurous anhydride , Sulphur dioxide , Sulfurous acid anhydride
- Appearance: Colorless gas ; Colourless gas or compressed liquefied gas with pungent odour ; Colorless gas with a characteristic, irritating, pungent odor. [Note: A liquid below 14°F. Shipped as a liquefied compressed gas.]
Warning: Unknown compound 'NaSO4'