2706-90-3

Basic information

• Product Name: PERFLUOROPENTANOIC ACID
• Synonyms: PERFLUOROPENTANOIC ACID;RARECHEM AL BO 2315;2,2,3,3,4,4,5,5,5-Nonafluoropentanoic acid;Nonafluoro-1-pentanoic acid;nonafluoro-pentanoicaci;n-perfluoropentanoic;Pentanoic acid, nonafluoro-;Valeric acid, nonafluoro-
• CAS NO: 2706-90-3
• Molecular Formula: C₅HF₉O₂
• Molecular Weight: 264.05
• EINECS: 220-300-7
• Product Categories: Analytical Chemistry;Ion-Pair Reagents for HPLC;LC/MS Ion-Pair Reagents for Basic Samples;Fluorous Chemistry;Fluorous Compounds;Synthetic Organic Chemistry
• Mol File: 2706-90-3.mol
• Article Data: 16

Chemical Properties

• Boiling Point: 140 °C(lit.)
• Flash Point: 140°C
• Appearance: Clear light yellow to light brown/Liquid
• Density: 1.713 g/mL at 25 °C(lit.)
• Vapor Pressure: 7.93mmHg at 25°C
• Refractive Index: n20/D 1.294(lit.)
• Storage Temp.: Inert atmosphere,Room Temperature
• PKA: 0.40±0.10(Predicted)
• Water Solubility: Partly soluble in water.
• Stability: Stable. Incompatible with strong oxidizing agents.
• BRN: 1800087
• CAS DataBase Reference: PERFLUOROPENTANOIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: PERFLUOROPENTANOIC ACID(2706-90-3)
• EPA Substance Registry System: PERFLUOROPENTANOIC ACID(2706-90-3)

Safety Data

• Hazard Codes: C
• Statements: 34
• Safety Statements: 26-36/37/39-45
• RIDADR: UN 3265 8/PG 2
• WGK Germany: 3
• TSCA: T
• HazardClass: 8
• PackingGroup: III
• Hazardous Substances Data: 2706-90-3(Hazardous Substances Data)

Usage

Chemical Properties

colourless liquid

Uses

Perfluoropentanoic acid is a short-chain perfluorocarboxylic acid (PFCA) generally used as an industrial surfactant and surface protector.

Definition

ChEBI: A monocarboxylic acid that is perfluorinated pentanoic acid.

Synthesis Reference(s)

Synthesis, p. 647, 1991 DOI: 10.1055/s-1991-26535

InChI:InChI=1/C5HF9O2/c6-2(7,1(15)16)3(8,9)4(10,11)5(12,13)14/h(H,15,16)

Upstream product

• 2082-59-9 pentanoic anhydride 
• 755-25-9 perfluoro-1-hexene 
• 109-52-4 valeric acid 
• 96-49-1 [1,3]-dioxolan-2-one 
• 423-39-2 1-iodo-2,2,3,3,4,4,5,5,5-nonafluorobutane 
• 335-67-1 Perfluorooctanoic acid 
• 2361-27-5 2-thienylhydrazide 
• 308-28-1 perfluoropentanoic anhydride 
• 77945-21-2 1,1,2,2,3,3,4,4,4-Nonafluoro-butane-1-sulfonic acid nonafluorobutyl ester 
• 2893-09-6 5,5,5-Trichlor-hexafluor-valeriansaeure-chlorid-<1,1-dichlor-nonafluorpentyl-imid> 
• 2762-74-5 2,2,3,3,4,4,5,5,5-Nonafluoro-N-(1,1,5,5,5-pentachloro-2,2,3,3,4,4-hexafluoro-pentyl)-pentanimidoyl chloride 
• 7732-18-5 water 
• 3282-30-2 pivaloyl chloride 
• 2043-47-2 1H,1H,2H,2H-nonafluoro-1-hexanol 

Downstream Products

• 355-30-6 2,2,3,3,4,4,5,5,5-nonafluoropentane-1,1-diol 
• 375-53-1 perfluoropentanal 
• 355-28-2 2,2,3,3,4,4,5,5,5-nonafluoropentanol 
• 375-60-0 perfluorovaleryl chloride 
• 117293-74-0 2,2,3,3,4,4,5,5,5-nonafluoro-N-[4-(cyanomethyl)phenyl]pentanamide 
• 375-22-4 heptafluorobutyric Acid 
• 124-38-9 carbon dioxide 
• 423-39-2 1-iodo-2,2,3,3,4,4,5,5,5-nonafluorobutane 
• 2706-89-0 Sodium perfluoropentanoate 
• 620-77-9 nonafluoro-valeric acid phenyl ester 
• 647-60-9 2,2,3,3,4,4,5,5,5-nonafluoro-1-( p-tolyl)pentan-1-one 
• 308-27-0 2,2,3,3,4,4,5,5,5-nonafluoro-1-phenylpentan-1-one 
• 117293-66-0 2,2,3,3,4,4,5,5,5-nonafluoro-N-[4-(1H-tetrazol-5-ylmethyl)phenyl]pentanamide 
• 183997-44-6 1-Nitro-4-(2,2,3,3,4,4,5,5,5-nonafluoro-pentyloxy)-benzene 

Relevant articles and documents

UTRASOUND-PROMOTED DIRECT CARBOXYLATION OF PERFLUOROALKYL IODIDES

Perfluoroalkyl iodides were directly carboxylated with Zn and CO2 under utrasonic irradiation affording the corresponding perfluoroalkanoic acids.

An improved synthesis of perfluorocarboxylic acids

Perfluoroalkyl iodides C(n)F(2n+1) CF2I (3 2CO2H in 91% yield, by reaction with zinc-copper couple in the presence of solid carbon dioxide in trimethyl phosphate as the solvent.

Photocatalytic decomposition of environmentally persistent perfluorooctanoic acid

Perfluorooctanoic acid was photocatalytically decomposed by using TiO 2/Ni-Cu, and a small bias potential (-0.1 V) applied on TiO 2/Ni-Cu electrode greatly enhanced its decomposition. Copyright

Electrocatalytic degradation of perfluorooctanoic acid by LaNixY1-xO3 (Y = Fe, Cu, Co, Sr) gas dispersion electrode

Perfluorooctanoic acid (PFOA), as a refractory organic pollutant, seriously harms the environment and damages human health. Here, the electrocatalytic method was selected to degrade PFOA. In this work, perovskite catalysts doped with different elements, and corresponding gas diffusion electrodes (GDE) were prepared by the gel-sol method and citric acid complexation method. The crystal structure, microscopic morphology, and electrochemical properties of the LaNixY1-xO3 (Y = Fe, Cu, Co, Sr) perovskite catalyst electrode were analyzed by XRD, TEM, and CV. Moreover, the electrocatalytic performances of the as-prepared electrodes were assessed by the degradation of PFOA, and the Sr-doped GDE exhibited the highest degradation rate of PFOA. The optimum degradation conditions, such as the current density, pH, and initial concentration were also investigated. It was observed that when the current density was 20 mA/cm2, pH was 5, and initial concentration was 0.25 mmol/L, the Sr-doped GDE had the best degradation and defluorination efficiency of PFOA reached 90.0 % and 75.1 %, respectively. High performance liquid chromatography-mass spectrometry (HPLC-MS) was used to analyze the intermediate products of PFOA degradation and obtain the degradation pathway. With the combined action of [rad]OH and O2, PFOA was degraded by stepwise removal of CF2 groups, which were ultimately degraded into F? and CO2.