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Sulfuric acid, fuming

SIGALD/435597 - reagent grade, 20%, as free SO3

Synonym: Oleum

CAS Number: 8014-95-7
Empirical Formula (Hill Notation): H2O4S
Molecular Weight: 98.08
MDL Number: MFCD00137792
Linear Formula: H2SO4 · (SO3)x
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-435597-500G 500 g
 $260.00
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This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 435597-500G.

 

concentration 20% (free SO3)
density 1.925 g/mL at 25 °C (lit.)
form liquid
grade reagent grade
InChI 1S/H2O4S.O3S/c1-5(2,3)4;1-4(2)3/h(H2,1,2,3,4);
InChI key HIFJUMGIHIZEPX-UHFFFAOYSA-N
Quality Level 100 
SMILES string O=S(=O)=O.OS(O)(=O)=O
vapor density 3 (vs air)
vapor pressure 2 mmHg ( 25 °C)
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 graphene
General 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.
Packaging: 500 g in glass bottle
Density 1.925 g/mL at 25 °C (lit.)
UNSPSC 12352106

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