Sulfur Dioxide is normally a gas

SO2 is a clear and colorless gas

Has a pungent smell (smells like burning matches/rotten eggs)

Melting point: -72.4 degrees Celsius

Boiling point: -10 degrees Celsius

Density: 2.551g/L

Solubility in water: 9.4g per 100mL (at 25 degrees Celsius)