O3S
80.07 g/mol
Industrial ChemicalDanger
SULFUR TRIOXIDE
CAS7446-11-9EC231-197-3
Category
Industrial Chemical
Compound Class
Other
Primary Use
Sulfonation agent and sulfuric acid intermediate
Sulfur trioxide is a chemical compound with the formula SO3, produced industrially on a vast scale as a precursor to sulfuric acid and sulfonate-based surfactants. It is the most economically important sulfur oxide and is used primarily as a sulfonation agent.
production of sulfuric acid via the Contact processmanufacture of sulfonate-based surfactants
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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CAS 7446-11-9
Related Compounds
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Zinc sulfate monohydrate
CAS7446-19-7
Electroplating and industrial processing
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Zinc sulfate heptahydrate
CAS7446-20-0
zinc supplement and industrial chemical
ReferenceSame Category
Aluminum chloride
CAS7446-70-0
Catalyst and chemical intermediate
ReferenceSame Category
Lithium chloride
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Desiccant and humectant
Safety Reference
Danger
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H330Fatal if inhaled
H335May cause respiratory irritation
H351Suspected of causing cancer
H411Toxic to aquatic life with long lasting effects
Identifiers
IUPAC Name
sulfur trioxide
InChIKey
AKEJUJNQAAGONA-UHFFFAOYSA-N
SMILES
O=S(=O)=O
Synonyms (12)
- NISSO SULFAN
- SULFUR TRIOXIDE
- Sulfan
- Sulfite radical anion
- Sulfur oxide (SO3)
- Sulfur trioxide, stabilized
- Sulfuric anhydride
- Sulfuric oxide
- Sulphur trioxide
- Trioxo-lambda~6~-sulfane
- [SO3]