Agent Name |
Sulfur trioxide |
CAS Number |
7446-11-9 |
Formula |
O3-S |
Major Category |
Toxic Gases & Vapors |
Synonyms |
Sulfan; Sulfuric anhydride; Sulfur trioxide; SULFUR TRIOXIDE, INHIBITED; Sulfur trioxide, stabilized; [ChemFinder] |
Category |
Other Toxic Gases & Vapors |
Description |
Colorless to white solid that fumes in air at room temperature; |
Sources/Uses |
Used as a sulfonating agent in the production of detergents and an intermediate in the production of sulfuric acid and explosives; [HSDB] |
Comments |
Highly corrosive to skin; [Quick CPC] High inhalation exposure can cause pneumonitis and pulmonary edema; [NJ-HSFS] Can cause severe coughing at a concentration of 1 ppm; [HSDB] |
Reference Link |
HSDB |
Exposure Assessment |
Skin Designation (ACGIH) |
Not evaluated |
TIH |
Yes |
Vapor Pressure |
433 mm Hg |
Adverse Effects |
Toxic Pneumonitis |
Yes |
Dermatotoxin |
Skin Burns |
Links to Other NLM Databases |
Health Studies |
Human Health Effects from Hazardous Substances Data Bank: SULFUR TRIOXIDE
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