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Sulfur trioxide

Sulfur trioxide chemical structure
CAS Number7446-11-9
FormulaSO3
Mol. Weight80.06 g/mol

What is Sulfur trioxide?

Sulfur trioxide is a chemical compound with CAS number 7446-11-9 and molecular formula SO3. It is used in various industrial and research applications.

Specifications

Linear Formula

SO3

Molecular Weight

80.06 g/mol

Assay/Purity

≥99%

Boiling Point

44.7 °C(lit.)

Density

1.97 g/mL at 25 °C(lit.)

Safety Information

GHS05GHS05
GHS07GHS07
Signal Word

Danger

Hazard Statements

H314-H335

Precautionary Statements

P261-P280-P305 + P351 + P338-P310

Required PPE

Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US)

Melting Point

16.8 °C(lit.)

EC Number

231-197-3

WGK Germany

1

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