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CAS 7790-94-5

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Chlorosulfonic acid

Description:
Chlorosulfonic acid, with the CAS number 7790-94-5, is a highly reactive and corrosive chemical compound. It is a colorless to yellowish liquid that has a pungent odor, reminiscent of sulfur dioxide. This compound is characterized by its strong acidity and is a powerful sulfonating agent, making it valuable in the synthesis of various organic compounds, including pharmaceuticals and agrochemicals. Chlorosulfonic acid is soluble in water, but the reaction is highly exothermic, producing hydrochloric acid and sulfuric acid upon hydrolysis. It is also miscible with many organic solvents. Due to its corrosive nature, it poses significant hazards, requiring careful handling and storage in appropriate materials to prevent reactions with moisture or organic substances. In addition to its industrial applications, chlorosulfonic acid is utilized in the production of surfactants and dyes. Safety precautions, including the use of personal protective equipment and proper ventilation, are essential when working with this compound to mitigate risks associated with its toxicity and reactivity.
Formula:ClHO3S
InChI:InChI=1S/ClHO3S/c1-5(2,3)4/h(H,2,3,4)
InChI key:InChIKey=XTHPWXDJESJLNJ-UHFFFAOYSA-N
SMILES:S(Cl)(=O)(=O)O
Synonyms:
  • Acide chlorosulfurique
  • Acido Clorosulfurico
  • Chloroschwefelsaure
  • Chlorosulfonic acid (with or without sulfur trioxide)
  • Chlorosulfonic acid (with or without sulfur trioxide) [UN1754] [Corrosive]
  • Chlorosulfuric acid
  • Chlorosulphuric acid
  • Chlorsulfonsaeure
  • Hsdb 909
  • Monochlorosulfonic acid
  • See more synonyms
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