Molecular Formula: SO3; Molecular Mass: 80.06g/mol; Density: 1.92 g/cm3 (liquid); Boiling point: 45 °C; Reacts with water to form sulfuric acid with liberation of heat; Colorless or fuming, toxic and pungent gas at room temperature with irritating smell.
Sulfur dioxide is an intermediate product in the production of sulfuric acid, which is obtained from the oxidation of sulfur dioxide, and then to converted to oleum, which is made into sulfuric acid.
- As an essential reagent in sulfonation processes in chemical industry
- As a raw material in manufacturing of liquid sulphur dioxide, chlorosulfonic acid, thionyl chloride, dimethyl sulfate, sulfamic acid, LABSA (Linear Alkyl Benzene Sulfonic Acid) etc..
- In the production of detergents.