354-88-1

Basic information

• Product Name: Pentafluoroethane sulfonic acid
• Synonyms: Pentafluoroethane sulfonic acid
• CAS NO: 354-88-1
• Molecular Formula: C₂HF₅O₃S
• Molecular Weight: 200.084556
• Mol File: 354-88-1.mol
• Article Data: 6

Chemical Properties

• Appearance: /
• Density: 1.863g/cm³
• Refractive Index: 1.336
• CAS DataBase Reference: Pentafluoroethane sulfonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: Pentafluoroethane sulfonic acid(354-88-1)
• EPA Substance Registry System: Pentafluoroethane sulfonic acid(354-88-1)

Safety Data

• Hazardous Substances Data: 354-88-1(Hazardous Substances Data)

Usage

General Description

Pentafluoroethane sulfonic acid is a strong organic acid that is used as a catalyst in various chemical reactions and as an intermediate in the production of other organic compounds. It is a colorless, odorless liquid that is soluble in water and organic solvents. Pentafluoroethane sulfonic acid is known for its high acidity and ability to efficiently catalyze reactions, making it a valuable tool in the synthesis of pharmaceuticals, agrochemicals, and specialty chemicals. Its strong acidic properties also make it suitable for use in electrochemical processes and as a corrosion inhibitor in metal finishing applications. However, pentafluoroethane sulfonic acid is a hazardous chemical and should be handled with caution due to its corrosive nature and potential for harmful effects on human health and the environment.

InChI:InChI=1/C2HF5O3S/c3-1(4,5)2(6,7)11(8,9)10/h(H,8,9,10)

Upstream product

• 354-87-0 pentafluoroethanesulfonyl fluoride 
• 77927-84-5 pentafluoroethyl pentafluoroethanesulfonate 
• 2837-92-5 potassium perfluoroethanesulfonate 
• 2923-21-9 perfluoroethanesulfonate sodium salt 
• 2923-20-8 Lithium pentafluoroethanesulfonate 
• 344324-36-3 pentafluoroethanesulfinic acid 
• 754-03-0 ethanesulfonyl fluoride 
• 24401-23-8 pentafluoroethanesulfonic acid trichloromethylester 
• 7732-18-5 water 
• 594-44-5 Ethanesulfonyl chloride 
• 1493-13-6 trifluorormethanesulfonic acid 
• 77927-85-6 pentafluoroethanesulfonate de trifluoromethyle 

Downstream Products

• 3582-05-6 trifluoromethyl trifluoromethanesulfonate 
• 77927-85-6 pentafluoroethanesulfonate de trifluoromethyle 
• 1493-13-6 trifluorormethanesulfonic acid 
• 77927-84-5 pentafluoroethyl pentafluoroethanesulfonate 
• 76-05-1 trifluoroacetic acid 
• 1568-80-5 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindan 
• 2837-92-5 potassium perfluoroethanesulfonate 
• 353-50-4 Carbonyl fluoride 
• 354-34-7 trifluoroacetyl fluoride 
• 355-25-9 perfluorobutane 
• 7446-09-5 sulfur dioxide 
• 2837-93-6 silver perfluoroethanesulfonate 
• 3823-22-1 barium perfluoroethanesulfinate 
• 27607-90-5 (CH₃)3Sn⁽¹⁺⁾*OSO₂C₂F₅^(1-)=(CH₃)3SnOSO₂C₂F₅ 

Relevant articles and documents

One-Pot Preparation of Pentafluoroethanesulfonic (Pentflic) Acid by the Organolithium Pathway

Pentafluoroethanesulfonic (pentflic) acid was prepared in high yield via the corresponding lithium pentflate obtained by lithiation of pentafluoroethyl iodide, followed by sulfonylation with sulfur dioxide, oxidation by hydrogen peroxide, and hydrolysis, in a one-pot reaction without isolation of any intermediates.The prepared pentflic acid was characterized, including by its yet unreported (13)C- and (19)F-NMR spectra.

Comparative electrochemical fluorination of ethanesulfonyl chloride and fluoride

Comparative electrochemical fluorination (ECF) of ethanesulfonyl chloride and fluoride via the Simons process has been investigated. In contrast to previously reported data, the electrochemical fluorination of C2H5SO2Cl only results in low yield of C2F5SO2F and the observed product distribution pattern indicates the strong influence of the chlorination process on the decomposition of the starting material. Ethanesulfonyl fluoride serves as a suitable starting material for the high-yield syntheses of pentafluoroethanesulfonyl fluoride and pentafluoroethanesulfonic acid. The electrochemical reduction of alkane-and chloroalkane-sulfonyl chlorides was investigated by cyclic voltammetry in order to explain the behaviour of these compounds during the Simons process.

OXYDATION ANODIQUE DE IODOPERFLUOROALCANES DANS LES ACIDES PERFLUOROALCANESULFONIQUES. PREPARATION DE NOUVEAUX ESTERS SULFONIQUES TOTALEMENT FLUORES RFSO3R'F A LONGUES CHAINES

Perfluorinated sulphonic esters RFSO3R'F and fluorosulphates FSO3R'F, are easily obtained by anodic oxidation of iodoperfluoroalkanes R'FI in perfluoroalkene sulphonic acids RFSO3H (RF=CF3, C2F5, C4F9) and fluorosulphuric acid.With di-iodo compound I(CF2)4I, the mono and the diester can be selectively obtained.The alkaline hydrolysis of these esters produces perfluorinated carboxylic compounds.Polyfluorinated iodide R'FCH2CH2I are also oxidized in similar conditions.The mechanism of the electrolytic reaction is discussed.