Sigma Aldrich Chlorosulfonic Acid

Catalog No. 57-102-4100G

Supplier: Sigma Aldrich 571024100G

Description

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Chlorosulfonic acid is a strong acid that is synthesized on an industrial scale by reacting sulfur trioxide and dry hydrogen chloride gas in an equimolar ratio. It can act as a sulfonating, dehydrating, oxidizing and chlorinating agent. It is reported to be a better electrophilic olefin cyclization agent in comparison to other sulfonic acids. Its infrared spectra in the solid, liquid and gaseous state have been recorded in the region 4000-400cm-1.Chlorosulfonic acid may be used in the following processes: Synthesis of di-n-butyl ammonium chlorosulfonate, a secondary amine ionic liquid.To prepare sulfonated polyethersulfone (SPES) with enhanced hydrophilic property.To attach sulfate group to silk fibroin for improving its anticoagulant ability.As a catalyst to prepare substituted coumarin, via von Pechmann condensation between phenol and +a-ketoester.As a substitute to acid catalyst in Biginelli reaction to prepare 3,4dihydropyrimidines.

Specifications

• CAS: 7790-94-5
• Density: 1.753 g/mL at 25°C
• Boiling Point: 151°C to 152°C (755 mmHg, lit.)
• Molecular Formula: HClO3S
• Refractive Index: n20/D 1.433
• Linear Formula: ClSO3H
• MDL Number: MFCD00011523
• Quantity: 100 g
• Molecular Weight (g/mol): 116.52 g/mol
• Biological Activity: Respiratory System