1.0 2016-05-19 01:45:09 UTC 2026-08-26 00:29:51 UTC Sulfur trioxide SmallMolecule Sulfur trioxide is an inorganic compound with the chemical formula O3S and an average molecular weight of 80.06 g/mol. Sulfur trioxide belongs to the other non-metal oxides, a subclass of other non-metal organides within the inorganic compounds. It is further categorized under the superclass of homogeneous non-metal compounds. In industrial applications, sulfur trioxide serves as a binder and is also identified as a degradant or impurity. The compound is found in or released from 23 recorded sources across several sectors. Within electrical and electronic equipment, it is associated with antennas, amplifiers, discharge lamps, electric switches, and electric hearing aids, among eight other sources. In the context of building and construction, it is found in floors, roofs, fencing, and stairs and ramps. Sulfur trioxide is also present in household cleaning and consumer products, specifically within tobacco smoke filters and bleaching agents. Additionally, it is linked to food, food processing, and cookware, where it is released during the processing of fish, the treatment of hops, fermentation processes for beer, and the preparation of wine or sparkling wine. Sulfur Trioxide (Sulfuric Anhydride) Sulfuric Anhydride (Sulfur Trioxide) O3S 80.06 79.956815034 sulfonylideneoxidane sulfur trioxide 7446-11-9 O=S(=O)=O InChI=1S/O3S/c1-4(2)3 AKEJUJNQAAGONA-UHFFFAOYSA-N Inorganic compounds Homogeneous non-metal compounds Other non-metal organides Other non-metal oxides Other non-metal oxides Inorganic oxides Inorganic oxide Other non-metal oxide sulfur oxide Detected and Not Quantified logp -0.5 logp -0.9 ChemAxon iupac sulfonylideneoxidane ChemAxon average_mass 80.06 ChemAxon mono_mass 79.956815034 ChemAxon smiles O=S(=O)=O ChemAxon formula O3S ChemAxon inchi InChI=1S/O3S/c1-4(2)3 ChemAxon inchikey AKEJUJNQAAGONA-UHFFFAOYSA-N ChemAxon polar_surface_area 51.21 ChemAxon refractivity 10.08 ChemAxon polarizability 4.91 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 3 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon #<HealthEffect::ActiveRecord_Associations_CollectionProxy:0x00007f726755e890> 24682