158534

Trifluoromethanesulfonic acid

reagent grade, 98%

• Szinonimák: TFMSA, Triflic acid
• Lineáris képlet: CF₃SO₃H
• CAS-szám: 1493-13-6
• Molekulatömeg: 150.08
• Beilstein: 1812100
• EC-szám: 216-087-5
• MDL-szám: MFCD00007514
• UNSPSC kód: 12352100
• PubChem Substance ID: 24849764
• NACRES: NA.21

Tulajdonságok

• grade: reagent grade
• Minőségi szint: 200
• gőzsűrűség: 5.2 (vs air)
• gőznyomás: 8 mmHg ( 25 °C)
• Teszt: 98%
• form: liquid
• törésmutató: n20/D 1.327 (lit.)
• bp: 162 °C (lit.)
• sűrűség: 1.696 g/mL at 25 °C (lit.)
• funkcionális csoport: fluoro; triflate
• SMILES string: OS(=O)(=O)C(F)(F)F
• InChI: 1S/CHF3O3S/c2-1(3,4)8(5,6)7/h(H,5,6,7)
• Nemzetközi kémiai azonosító kulcs: ITMCEJHCFYSIIV-UHFFFAOYSA-N

Leírás

Általános leírás

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.

Alkalmazás

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

Biztonsági adatok

• Piktogramok: GHS05,GHS07
• Figyelmeztetés: Danger
• Figyelmeztető mondatok: H290,H302,H314,H335
• Óvintézkedésre vonatkozó mondatok: P234 - P261 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Veszélyességi osztályok: Acute Tox. 4 Oral - Met. Corr. 1 - Skin Corr. 1B - STOT SE 3
• Célzott szervek: Respiratory system
• Tárolási osztály kódja: 8A - Combustible corrosive hazardous materials
• WGK: WGK 1
• Lobbanási pont (F): >332.1 °F - Pensky-Martens closed cup
• Lobbanási pont (C): > 166.7 °C - Pensky-Martens closed cup
• Egyéni védőeszköz: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter