158534

Trifluoromethanesulfonic acid

reagent grade, 98%

• Sinónimos: TFMSA, Triflic acid
• Fórmula lineal: CF₃SO₃H
• Número de CAS: 1493-13-6
• Peso molecular: 150.08
• Beilstein: 1812100
• Número CE: 216-087-5
• Número MDL: MFCD00007514
• Código UNSPSC: 12352100
• ID de la sustancia en PubChem: 24849764
• NACRES: NA.21

Propiedades

• grado: reagent grade
• Nivel de calidad: 200
• densidad de vapor: 5.2 (vs air)
• presión de vapor: 8 mmHg ( 25 °C)
• Análisis: 98%
• formulario: liquid
• índice de refracción: n20/D 1.327 (lit.)
• bp: 162 °C (lit.)
• densidad: 1.696 g/mL at 25 °C (lit.)
• grupo funcional: fluoro; triflate
• cadena SMILES: OS(=O)(=O)C(F)(F)F
• InChI: 1S/CHF3O3S/c2-1(3,4)8(5,6)7/h(H,5,6,7)
• Clave InChI: ITMCEJHCFYSIIV-UHFFFAOYSA-N

Descripción

Descripción general

Trifluoromethanesulfonic acid is the strongest monoprotic organic acid. It has been synthesized by the oxidation of bis(trifluoromethylthio)mercury with aqueous hydrogen peroxide. It undergoes complete dissociation in basic solvents such as dimethyl sulfoxide, dimethylacetamide and dimethylformamide. Its dissociation in non-aqueous solvents has been studied by conductometry. On mixing trifluoromethanesulfonic acid with HNO_3, it forms nitronium trifluoromethane sulfonate, which is an excellent nitrating reagent.

Aplicación

Trifluoromethanesulfonic acid is a versatile reagent, employed as catalyst for the following studies:

• Friedel-Crafts acylation of aromatic compounds with methyl benzoate.
• Addition reaction of dialkyl disulfides to terminal alkynes.
• Synthesis of a single cyclic tetrasiloxane containing propylammonium trifluoromethanesulfonate and methyl side-chain groups (Am-CyTS).
• Preparation of starting reagents for the synthesis of fluorinated 2,5-substituted 1-ethyl-1H-benzimidazole derivatives.
• Synthesis of aryl triflates, the lactonization of alkenoic acids, and the formation of E-alkenes.

Trifluoromethanesulfonic acid may be used as an initiator for the cationic polymerization of styrene, hexamethylcyclotrisiloxane and L,L-dilactide.

Deglycosylation agent

Información de seguridad

• Pictogramas: GHS05,GHS07
• Palabra de señalización: Danger
• Frases de peligro: H290,H302,H314,H335
• Consejos de prudencia: P234 - P261 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Clasificaciones de peligro: Acute Tox. 4 Oral - Met. Corr. 1 - Skin Corr. 1B - STOT SE 3
• Órganos de actuación: Respiratory system
• Código de clase de almacenamiento: 8A - Combustible corrosive hazardous materials
• Clase de riesgo para el agua (WGK): WGK 1
• Punto de inflamabilidad (°F): >332.1 °F - Pensky-Martens closed cup
• Punto de inflamabilidad (°C): > 166.7 °C - Pensky-Martens closed cup
• Equipo de protección personal: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter