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Specifications Synonyms: OleumCAS Number: 8014-95-7Formula: H2O4SFormula Weight: 98.08Linear Formula: H2SO4 · (SO3)xMDL No.: MFCD00137792Purity: 20% free SO3 basisDensity: 1.925 g/mL at 25 C(lit.)Beilstein Registry Number: 2037554UNSPSC Code: 12352106General description: Fuming sulfuric acid is an inorganic acid, that can be produced by the addition of sulfur trioxide to concentrated sulfuric acid. It is commonly used as a sulfonating reagent in sulfonation reactions. When fuming sulfuric acid is employed as reaction medium, bromination takes place only in the pyridine nucleus of isomeric methylpyridines and 2,6-dimethylpyridine. It can also oxidize fullerene C60 to form fullerene polymers.Application: Fuming sulfuric acid may be used as a sulfonating agent for the synthesis of: . sulfonated poly(1,4-phenylene sulfide) . water-soluble polyphosphazene polyelectrolyte . sulfated grapheneRTECS: WS5605000RIDADR: UN1831- class 8 - PG 1- Sulfuric acid, fuming with less than 30 percent free sulfur trioxideWGK Germany: 1R Codes: 14-35-37S Codes: 26-30-45IOD Codes: CSymbol: GHS05, GHS06Signal Word: DangerHazard Statements: H314-H330-H335Precautionary statements: P260-P280-P284-P305 P351 P338-P310
