Is e220 anhydride sulfureux vegan?

"E220 anhydride sulfureux" is the French label term for sulfur dioxide, an inorganic chemical preservative identified in the European additive numbering system as E220. It is manufactured industrially through the combustion of elemental sulfur or by roasting sulfide-rich mineral ores, such as pyrite, in air. The resulting gas is captured and purified before being added directly to foods or compressed into liquid form for industrial use. It is widely used in dried fruits, fruit juices, vinegars, potato products, and fermented beverages like wine to prevent microbial spoilage and inhibit discoloration.

this additive is vegan because it is derived exclusively from mineral and synthetic sources. Animal tissues, secretions, and animal-derived processing aids are never utilized in the creation or purification of sulfur dioxide. Because its supply chain relies entirely on mined minerals and chemical synthesis, the presence of e220 anhydride sulfureux on a food label does not compromise the vegan status of a product.