Is Sulfur Dioxide vegetarian?
Sulfur Dioxide
Sulfur dioxide is a colorless, toxic gas with a pungent odor, produced industrially by burning sulfur or roasting metal sulfide ores. It is used as a preservative and antioxidant in food and beverages, and as a fumigant and bleaching agent.
| Also known as | SO2, Sulfurous Anhydride, Sulphur Dioxide |
|---|---|
| E number | E220 |
| INS number | 220 |
| CAS number | 7446-09-5 |
| EC number | 231-195-2 |
| Last reviewed | 16 April 2026 |
An ingredient is considered vegetarian if it avoids components derived from killing an animal.
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