Benzenesulfonyl Chloride CAS 98-09-9
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Benzenesulfonyl chloride CAS 98-09-9
Benzenesulfonyl chloride also known as Phenylsulfonyl chloride, benzene sulfochloride, benzenesulfonic chloride, benzenesulphonyl chloride. The molecular formula is C6H5ClO2S. This substance carries CAS 98-09-9 and holds valid REACH registration. MSDS download is available for qualified buyers.
Benzenesulfonyl chloride is a colourless to pale yellow oily liquid. It is a corrosive sulfonyl halide intermediate widely traded among global chemical importers. This substance hydrolyses slowly when exposed to humid air and releases hydrogen chloride fumes.
Specification
| Item | Standard | Test Method |
|---|---|---|
| Benzenesulfonyl chloride purity | ≥99.0 wt% | GC |
| Free acid | ≤0.20 wt% | Titration |
| Water content | ≤0.20 wt% | Karl Fischer |
| Diphenylsulfone | ≤0.10 wt% | GC |
| Color APHA | ≤25 | Visual |
Physical Properties
Appearance: Colorless to pale yellow oily liquid
Density: 1.384 g/cm³ at 20°C
Melting point: 14–15 °C
Boiling point: 252 °C
Refractive index: 1.550–1.554 at 20°C
Solubility: Insoluble in water, reacts slowly with water; miscible with most organic solvents
Applications
Benzenesulfonyl chloride acts as a key derivatization reagent and organic synthesis intermediate. It is used for manufacturing sulfonamides, dyes, pesticide intermediates, pharmaceutical raw materials, and analytical reagents for amine identification.
FAQ
What storage conditions are required for Benzenesulfonyl chloride? Keep containers tightly sealed in cool, ventilated warehouse. Isolate from moisture, alkaline materials and oxidizing agents to prevent hydrolysis and corrosion.
How does Benzenesulfonyl chloride behave during ocean shipment? It is classified as corrosive cargo. Sealed steel drums are adopted for packing, and moisture control must be maintained throughout transit.
Can REACH supporting documents be supplied for customs clearance? REACH registration information can be provided. MSDS download is accessible for compliance checking before import declaration.
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