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Trifluoromethanesulfonic anhydride

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Trifluoromethanesulfonic anhydride Basic information
Trifluoromethanesulfonic anhydride Chemical Properties
  • Melting point:-80°C
  • Boiling point:81-83 °C(lit.)
  • Density 1.677 g/mL at 25 °C(lit.)
  • vapor density 5.2 (vs air)
  • vapor pressure 8 mm Hg ( 20 °C)
  • refractive index n20/D 1.321(lit.)
  • RTECS PB2772000
  • Flash point:81-83°C
  • storage temp. Refrigerator
  • solubility Miscible with dichloromethane. Immiscible with hydrocarbons.
  • form Liquid
  • color Clear colorless to light brown
  • Specific Gravity1.677
  • Water Solubility reacts violently with water
  • Sensitive Moisture Sensitive
  • BRN 1813600
  • InChIKeyWJKHJLXJJJATHN-UHFFFAOYSA-N
  • CAS DataBase Reference358-23-6(CAS DataBase Reference)
  • NIST Chemistry ReferenceTrifluoromethanesulfonic anhydride(358-23-6)
  • EPA Substance Registry SystemMethanesulfonic acid, trifluoro-, anhydride (358-23-6)
Safety Information
  • Hazard Codes C
  • Risk Statements 14-21/22-34-35-22-40
  • Safety Statements 26-36/37/39-43-45-8
  • RIDADR UN 3265 8/PG 2
  • WGK Germany 3
  • 10-21
  • Hazard Note Corrosive
  • TSCA Yes
  • HazardClass 8
  • PackingGroup I
  • HS Code 29049020
  • ToxicityLD50 orally in Rabbit: 1012 mg/kg
MSDS
Trifluoromethanesulfonic anhydride Usage And Synthesis
  • Chemical Propertiesclear colorless to light brown liquid
  • UsesTrifluoromethanesulfonic Anhydride is a strong electrophile used in chemical synthesis for introducing the triflyl group.
  • Purification MethodsIt can be freshly prepared from the anhydrous acid (11.5g) and P2O5 (11.5g, or half this weight) by setting aside at room temperature for 1hour, distilling off volatile products then distil it through a short Vigreux column. It is readily hydrolysed by H2O and decomposes appreciably after a few days to liberate SO2 and produce a viscous liquid. Store it dry at low temperatures. [Burdon et al. J Chem Soc 2574 1957, Beard et al. J Org Chem 38 373 1973, Beilstein 3 IV 35.]
Trifluoromethanesulfonic anhydride Preparation Products And Raw materials
Trifluoromethanesulfonic anhydride(358-23-6)Related Product Information
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