Sulfur trioxide
Сумпор триоксид · Trioxyde de soufre · ثلاثي أكسيد الكبريت · Sulfat anhidridi · Серен триоксид · Schwefeltrioxid · Τριοξείδιο του θείου · Óxido de azufre · تری اکسید سولفور · Kén-trioxid · Belerang trioksida · Anidride solforica
| CAS | 7446-11-9 |
|---|---|
| EC | 231-197-3 |
| UN | 1829 |
| Formula | SO3 |
| Molar mass | 80.07 g/mol |
| Relative density of the gas or vapour (air = 1) | 2.76 |
| GHS | Danger · H314, H318, H330, H335, H351, H411 |
Sulfur trioxide is a sulfur oxide. Sulfur trioxide, is a colorless to white crystalline solid which will fume in air. Often shipped with inhibitor to prevent polymerization. It reacts violently with water to form sulfuric acid with the release of heat.