SO2 (aq) + 2 NaOH (aq) → Na2SO3 (aq) + H2O (l)
This is an acid-base reaction (neutralization): SO2 is an acid, NaOH is a base.
Reactants:
- 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.]
- NaOH
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