Applications:
- Disinfectant
- Refrigerant
- Reducing agent
- Bleach
- Food preservative
- Fumigant
- Glass industry
- Bulb industry
- Bleaching wool or straw
- Preparation of:
- Sulphuric acid
- Sulphur trioxide
- Sulphites
Sulfur dioxide, (SO2) is an inorganic compound which has a pungent, irritating odour and is a heavy, colourless, poisonous gas. It is produced in huge quantities in intermediate steps of sulfuric acid manufacture.