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sulfur trioxide

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sul·fur tri·ox·ide

SO3; forms sulfuric acid, H2SO4, by its reaction with water.
Synonym(s): sulfuric oxide
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References in periodicals archive
Sulfur trioxide occurs in a monomeric form and in several polymeric forms.
Homogenous and heterogeneous sulfonation of polymers: a review
Coalition uses 10-20% sulfur trioxide gas, recycles the unused portion, and neutralizes with calcium, which becomes incorporated into the sulfonated surface.
Auto gas tanks: the great barrier grief
The formation of sulfur trioxide radical anion during the prostaglandin hydroperoxidase-catalyzed oxidation of bisulfite (hydrated sulfur dioxide).
(Bi)sulfite oxidation by copper, zinc-superoxide dismutase: sulfite-derived, radical-initiated protein radical formation
Sulfur trioxide forms in the high-temperature medium (>1100 [degrees]C) through the reaction with atomic oxygen according to the equation
Formation and emission of compounds affecting environment
Sulfur trioxide ([SO.sub.3]) exemplifies these "hypervalent" molecules.
Stretching conceptions of chemical bonds
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