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

Description

Pentafluoroethane sulfonic acid is a strong organic acid characterized by its high acidity, colorless and odorless appearance, and solubility in both water and organic solvents. It is widely recognized for its efficiency in catalyzing chemical reactions and serving as an intermediate in the synthesis of various organic compounds.

Uses

Used in Chemical Synthesis:
Pentafluoroethane sulfonic acid is used as a catalyst for its ability to efficiently catalyze a range of chemical reactions, which is crucial in the synthesis of pharmaceuticals, agrochemicals, and specialty chemicals.
Used in Electrochemical Processes:
Due to its strong acidic properties, Pentafluoroethane sulfonic acid is utilized in electrochemical processes where its acidity plays a significant role in facilitating the desired reactions.
Used as a Corrosion Inhibitor in Metal Finishing:
Pentafluoroethane sulfonic acid is employed as a corrosion inhibitor in metal finishing applications, leveraging its strong acidity to protect metals from corrosion and extend their service life.
Used in Research and Development:
In the research and development sector, Pentafluoroethane sulfonic acid is used as a reagent and catalyst to explore new chemical pathways and develop innovative products.

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

Downstream Products

• 77927-85-6 pentafluoroethanesulfonate de trifluoromethyle 
• 77927-84-5 pentafluoroethyl pentafluoroethanesulfonate 
• 78522-66-4 1,1,2,2,2-Pentafluoro-ethanesulfonic acid tridecafluorohexyl ester 
• 3582-05-6 trifluoromethyl trifluoromethanesulfonate 
• 1493-13-6 trifluorormethanesulfonic acid 
• 76-05-1 trifluoroacetic acid 
• 75-73-0 carbon tetrafluoride 
• 76-16-4 Hexafluoroethane 
• 354-87-0 pentafluoroethanesulfonyl fluoride 
• 353-50-4 Carbonyl fluoride 
• 354-34-7 trifluoroacetyl fluoride 
• 355-25-9 perfluorobutane 
• 1568-80-5 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindan 
• 2837-92-5 potassium perfluoroethanesulfonate 

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.