CymitQuimica logo

CAS 7446-11-9

:

Sulfur trioxide

Description:
Sulfur trioxide (SO₃) is a colorless, highly corrosive liquid or gas that is a significant industrial chemical, primarily used in the production of sulfuric acid. It has a molecular weight of approximately 80.06 g/mol and is known for its strong oxidizing properties. SO₃ is hygroscopic, meaning it readily absorbs water, forming sulfuric acid upon contact with moisture. This reaction is exothermic and can be hazardous, as it releases heat and can produce corrosive fumes. Sulfur trioxide exists in several forms, including a gaseous state and a liquid state at low temperatures. It has a pungent, irritating odor and can cause severe respiratory and skin irritation upon exposure. In terms of reactivity, SO₃ can react with various organic and inorganic compounds, making it a key reagent in sulfonation reactions. Due to its corrosive nature, it must be handled with caution in controlled environments, utilizing appropriate safety measures to prevent exposure and environmental release.
Formula:O3S
InChI:InChI=1S/O3S/c1-4(2)3
InChI key:InChIKey=AKEJUJNQAAGONA-UHFFFAOYSA-N
SMILES:S(=O)(=O)=O
Synonyms:
  • Nisso Sulfan
  • Schwefeltrioxid
  • Sulfur oxide (SO3)
  • Sulfur oxide (SO<sub>3</sub>)
  • Sulfuric Anhydride
  • Sulfuric Trioxide
  • Sulfuric oxide
  • Sulphur Trioxide
  • Sulphuric (acid) anhydride
  • Trioxido De Azufre
  • See more synonyms
Sort by
The purity filter is not visible because current products do not have associated purity data for filtering.
Found 1 products.