In a sealed container, oleum is a clear to slightly turbid, colorless to light yellow liquid. In ambient air, oleum reacts with water vapor to produce a dense white “smoke” of sulfuric acid aerosol. Formula: H2SO4 + Free SO3 Nomenclature: Oleum Fuming Sulfuric Acid Pyrosulfuric Acid CAS: 8014-95-7 CAS Index: Sulfuric Acid, mixture with sulfur trioxide Composition: 20% oleum: 104.5% H2SO425% oleum: 105.63% H2SO430% oleum: 106.75% H2SO465% oleum: 114.63% H2SO4Available in: North America Uses: Chemical: In the manufacture of organic sulfonates, detergents, and lubricants; in nitrating mixtures; as a dehydrating agent; as an SO3 source. Information provided by Rhodia, Rhodia has been acquired by Solvay. |