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- Surflon S-111 (CAS 72968-3-88) is a commercial product consisting of perfluorinated carboxylic acids (PFCAs) in ammonium salt form. It is commonly used as a polymerization aid in the production of fluoropolymers. The dominant chemical compound is perfluorononanoic acid (PFNA) at 74% by weight, followed by the 11 carbon perfluoroundecanoic acid (20%), and the 13 carbon perfluorotridecanoic acid (5%). Surflon S-111 is synthesized in Japan by oxidizing a mixture of fluorotelomer olefins. Fluorotelomer olefins are synthesized using a telomerization of tetrafluoroethylene taxogens (monomers), followed by an ethylene insertion. The olefin is oxidized, removing one carbon to yield products with an odd number of carbons with even-lengthed fluorocarbon chains plus a carboxylic acid group. As the fluorotelomer olefins are dominated by F(CF2)8CH=CH2, PFNA is the major PFCA product. Surflon S-111 "is described as Fatty acids, C7-C13, perfluoro, ammonium salts". (en)
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- Surflon S-111 (CAS 72968-3-88) is a commercial product consisting of perfluorinated carboxylic acids (PFCAs) in ammonium salt form. It is commonly used as a polymerization aid in the production of fluoropolymers. The dominant chemical compound is perfluorononanoic acid (PFNA) at 74% by weight, followed by the 11 carbon perfluoroundecanoic acid (20%), and the 13 carbon perfluorotridecanoic acid (5%). Surflon S-111 "is described as Fatty acids, C7-C13, perfluoro, ammonium salts". (en)
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