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Triflic acid

Names IUPAC nameTrifluoromethanesulfonic acidOther names Triflic acidIdentifiers CAS Number1493-13-63D model (JSmol)Interactive imageBeilstein Reference1812100 ChEBICHEBI:48511ChEMBLChEMBL1236265ChemSpider56192ECHA InfoCard100.014.625EC Number216-087-5Gmelin Reference2805 PubChemCID62406UNIIJE2SY203E8CompTox Dashboard(EPA)DTXSID70892979 DTXSID2044397, DTXSID70892979InChIInChI=1S/CHF3O3S/c2-1(3,4)8(5,6)7/h(H,5,6,7)Key: ITMCEJHCFYSIIV-UHFFFAOYSA-NInChI=1/CHF3O3S/c2-1(3,4)8(5,6)7/h(H,5,6,7)Key: ITMCEJHCFYSIIV-UHFFFAOYAWSMILESC(F)(F)(F)S(=O)(=O)OProperties Chemical formulaCF3SO3H Molar mass150.07121 g/mol Appearance Colorless liquid Density1.696 g/mL Melting point−40 °C (−40 °F; 233 K) Boiling point162 °C (324 °F; 435 K) Solubility in water1600 g/L Vapor pressure3.2 Acidity (pKa) −14.7±2.0Conjugate baseTriflate anionViscosity1.864–1.881 mm/s at 20 °C Hazards Occupational safety and health (OHS/OSH): Main hazardsCauses severe acid burns GHS labelling: PictogramsSignal wordDangerHazard statementsH290, H302, H314, H335, H402Precautionary statementsP234, P261, P264, P270, P271, P273, P280, P301+P312+P330, P301+P330+P331, P303+P361+P353, P304+P340+P310, P305+P351+P338+P310, P363, P390, P403+P233, P405, P501NFPA 704 (fire diamond) 402ACIDRelated compounds Related compoundsSulfuric acidFluorosulfuric acidMethanesulfonic acidTrichloromethanesulfonic acidTrifluoroacetic acidPerfluorooctanesulfonic acidTriflidic acidNafionExcept where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).Yverify ( ?)

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