Perfluorononanoic acid, an example of a perfluoroalkyl carboxylic acid (PFCA)
Perfluoroalkyl carboxylic acids (PFCAs), or perfluorocarboxylic acids are compounds of the formula CnF(2n+1)CO2H that belong to the class of per- and polyfluoroalkyl substances. The simplest example is trifluoroacetic acid. These compounds are organofluorine analogues of ordinary carboxylic acids, but they are stronger by several pKa units and they exhibit great hydrophobic character. Perfluoroalkyl dicarboxylic acids (PFdiCAs) are also known, e.g. C2F4(CO2H)2.[1]
^Siegemund G, Schwertfeger W, Feiring A, Smart B, Behr F, Vogel H, McKusick B (2002). "Fluorine Compounds, Organic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH: a11_349. doi:10.1002/14356007.a11_349. ISBN 978-3-527-30673-2.
and 20 Related for: Perfluoroalkyl carboxylic acids information
Forest K (June 2010). "Theoretical studies on the pKa values of perfluoroalkylcarboxylicacids". J. Mol. Struct. (Theochem). 949 (1–3): 60–69. doi:10.1016/j...
Perfluorobutanoic acid (PFBA) is a perfluoroalkylcarboxylicacid with the formula C3F7CO2H. As the perfluorinated derivative of butyric acid, this colourless...
Perfluoropropionic acid (PFPrA) or pentafluoropropionic acid is an ultra-short chain perfluoroalkylcarboxylicacid with the formula CF3CF2CO2H. It is...
"Fluorinated alternatives to long-chain perfluoroalkylcarboxylicacids (PFCAs), perfluoroalkane sulfonic acids (PFSAs) and their potential precursors"...
alcohol functional group. They are volatile precursors to perfluorinated carboxylicacids, such as PFOA and PFNA, and other compounds. Commonly, an individual...
Carol (November 9–13, 2014). Determination of perfluoroalkyl ether carboxylicacids (PFECAs) and sulfonic acids (PFESAs) in North Carolina surface water using...
hydrofluoric acid (anhydrous) at a cell potential of 4.5 to 7 V. Several compounds can be used as starting material, for example, carboxylicacids (RCOOH)...
can be used, and employing milder oxidants and acids. A free radical is formed from the carboxylicacid in an oxidative decarboxylation with silver salts...
such as nitrogen, iodine, or ionic groups, such as perfluorinated carboxylicacids. Organofluorine compounds are prepared by numerous routes, depending...
SN2. Finally, weakly nucleophilic species (e.g., water, alcohols, carboxylicacids) will give a mixture of SN1 and E1. For 1° haloalkanes with β-branching...
strength of the carbon–fluorine bond. Perfluoroalkylacids (PFAAs), which are sparingly water-soluble owing to their acidic functional groups, are noted persistent...
Kucheryna, A.; Bissky, G.; Willner, H. (2005). "New ionic liquids with tris(perfluoroalkyl)trifluorophosphate (FAP) anions". Journal of Fluorine Chemistry. 126...
theorize in their study that this restriction is primarily in the carboxylic-acid group next to the enamine attachment, which can stabilize the imine...
slow evaporation of the halogen. Organic acids, including trifluoroacetic acid, propionic acid, and sulfonic acids produce PTs with lower conductivities...
ingestion, PAPs are subsequently biotransformed into perfluorinated carboxylicacids (PFCAs), compounds which have long attracted attention due to their...
polyfluoroalkyl substances (PFASs). Levels of perfluorinated carboxylicacids, especially perfluorooctanoic acid (PFOA), have been shown to increase in ski wax technicians...
are summarized in the table below. With highly electron withdrawing perfluoroalkyl substituents, oxaziridines exhibit reactivity more similar to that of...
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