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Sulfur trioxide

Catalog No. Sulfur_trioxide Name Wikipedia.org
CAS Number 7446-11-9 Website http://www.wikipedia.org/
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SYNONYMS

IUPAC name
sulfonylideneoxidane
IUPAC Systematic name
Sulfonylideneoxidane
IUPAC Traditional name
sulfur trioxide
Synonyms
Sulfuric anhydride
Sulfan

DATABASE IDS

Gmelin ID 1448
Wikipedia Title Sulfur_trioxide
PubChem CID 24682
CHEBI ID 29384
EC Number 231-197-3
CAS Number 7446-11-9
Chemspider ID 23080

PROPERTIES

Boiling Point 45°C
Std enthalpy of formation −397.77 kJ/mol
Density 1.92 g/cm3, liquid
Flash Point Non-flammable
Melting Point 16.9 °C, 290.1 K, 62.4 °F
Std molar entropy 256.77 J K−1 mol−1
Solubility Reacts to give Sulfuric Acid in water
EU Index 016-019-00-2
NFPA704
NFPA 704 diagram
0
3
3
OX
Risk Statements R14, R35, R37
RTECS WT4830000
Safety Statements S1/2, S26, S30, S45, S53
UN Number UN 1829

DETAILS

Description (English)

REFERENCES