| Details: | Molecular formula:C8HF15O2 Molecular weight: 414.06 Appearance:white crystal Boiling point : 189-191°C Melting point : 55-60°C Water solution: 3.4 g/L
Density：1,7 g/cm3
Fp：189-192°C
Solubility:3.4g/l
PH:2.6 (1g/l, H2O, 20℃)
Water Solubility:3.4 g/L
Chemical Properties:Perfluorooctanoic acid is a white to off-white powder or colorless flakes. It is very soluble in water.It has a pH of 2.6. Perfluorooctanoic acid has the ability to react with bases, oxidizing agents, and reducing agents. Upon decomposition, PFOA can form carbon oxides and hydrogen fluoride. Additional information related to physical and chemical properties of PFOA are not currently available.
Uses:Perfluorooctanoic acid (PFOA) is fluorinated surfactant used, primarily as its ammonium salt (APFO), as an aid in the chemical synthesis of fluoropolymers and fluoroelastomers. As such, it may be found in nonstick cookware and utensils, stain-repellant fabric treatments, and water-proofing treatments for garments. Although an effort is underway by the U.S. EPA to reduce use of and replace perfluoroalkyls with other substances, PFOA is still used in United States industry.
Perfluorooctanoic acid (PFOA, C8, pentadecafluorooctanoic acid, perfluoro caprylic acid) is an eightcarbon compound in the perfluoroalkyl family of chemicals. Perfluorooctane sulfonate is used in a variety of applications, including nonstick cookware, waterproof clothing, leather products, cleaning products, and pesticides. Its main use was as a stain repellent on carpet, furniture, and other consumer products. In 2006, the U.S. Protection Agency along with eight major companies that utilized PFOA embarked on a program to reduce emissions and use of the chemical by 2015 (USEPA, 2012).
PFOA is a completely fluorinated organic acid that is produced synthetically as its salts. The typical structure has a nonbranched chain of eight carbon atoms. The industrial production of perfluoroalkyl carboxylates started in the late 1940s. Two principal production processes are used to manufacture PFOA, viz. electrochemical fluorination and telomerization.
PFOA can also appear as a result of degradation of some precursors, e.g., fluorotelomer alcohols.
The ammonium salt of PFOA is primarily used as an emulsifier or ‘processing aid’ in industrial applications, for example, in the production of fluoropolymers such as polytetrafluoroethylene, but also produced for fluorosurfactant use. Typical uses include fluoropolymers in electronics, textiles, and nonstick cookware, and fluorosurfactants in aqueous filmforming foams used for fire fighting.
Pentadecafluorooctanoic acid solution may be used as an ion-pairing reagent in the development of a chromatographic method for the separation and determination of underivatized proteinic amino acids using liquid chromatography with evaporative light scattering detection (LC-ELSD) and atmospheric pressure ionization-mass spectrometry (LC-API-MS), respectively.
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