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Sulfur trioxide

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Sulfur trioxide

Molecular formula: O3S CAS# 7446-11-9
Categories: Oxide
PubChem CID: 24682 | CHEBI:29384 | ChemSpider ID: 23080
Names
English:
227692_ALDRICH
425478_ALDRICH
AC1Q6YFD
Sulfan
Sulfite radical anion
Sulfonylideneoxidane
Sulfur trioxide(CAS) [Wiki]
Sulfuric anhydride
Sulphur trioxide
UN 1829
oxosulfane dioxide

Variants of the formula:

SO3
O//S`|O|\\O
O\\S|O`|//O
Elemental composition
Can't show the diagram.
Symbol Element Atomic weight Number of atoms Mass percent

Reactions in which Sulfur trioxide is involved

  • 2SO2 + O2 <=> 2SO3
  • SO3 + H2O -> H2SO4
  • 2SO2 + O2 -> 2SO3
  • Fe2(SO4)3 "500-700^oC"--> Fe2O3 + 3SO3"|^"
  • SO2 + O3 -> SO3 + O2