Triflic acid, 99%
$217.16 – $2,411.94
Product Code: KI-0008-HPCAS NO: 1493-13-6
- Chemical Formula: CHF3O3S
- Synonyms: TfOH, as triflic acid, TFMS, TFSA, HOTf
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- SUM Formula: CHF3O3S
- Molecular Weight: 150.08
Triflic acid, 99% (1493-13-6); Chemical Synthesis
Trifluoromethanesulfonic acid (CAS Number: 1493-13-6) is a sulfonic acid with the chemical formula CF3SO3H. It is also known as triflic acid, TFMS, TFSA, HOTf or TfOH. It is one of the strongest known acids and has a pKa of -14.7. It is a hygroscopic, colorless, slightly viscous liquid that is soluble in polar solvents such as dimethylformamide (DMF), dimethyl sulfoxide (DMSO), acetonitrile, and dimethyl sulfone. It has a density of 1.696 g/mL, a melting point of -40 °C, and a boiling point of 162 °C. It is mainly used in research as a catalyst for esterification and other reactions. It can also form nitronium salts with nitric acid, which are useful for nitrating aromatic compounds. Triflic acid is thermally and chemically stable and does not oxidize or reduce substrates. It also does not sulfonate substrates, unlike other strong acids such as sulfuric acid or fluorosulfuric acid.
Key Applications
Friedel-Crafts acylation of aromatic compounds with methyl benzoate. Addition reaction of dialkyl disulfides to terminal alkynes. Preparation of starting reagents for the synthesis of fluorinated 2,5-substituted 1-ethyl-1H-benzimidazole derivatives. Metal salts for energy storage devices. For example, synthesis of Zinc trifluoromethansulfonate for zinc ion batteries. Synthesis of ionic liquids such 1-Ethyl-2,3-dimethylimidazolium triflate
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