Perfluorooctyl sulfonic acid

Some widely used fluorotensides have recently become the focus of environmental concerns. Compounds such as perfluorooctyl sulfonic acid and perfluoroocta-noic acid (PFOA) have environmental lifetimes on a nearly geological time-scale. Traces of these substances have been found to be present in the remotest locations on earth and the source of the contamination remains unclear. There is not yet much unambiguous evidence of negative physiological effects of these widely used fluorosurfactants, although perfluorooctyl carboxylates have attracted some critical attention as a potential developmental toxin in rats [37]. Some major producers have, therefore, already started to replace these tensides by more readily degradable alternative compounds. 

Charlie Auer, former Director of the EPA s Office of Pollution Prevention and Toxics, made a presentation in Ottawa, Ontario, Canada, on 30 October 2006 (Air and Waste Management Association) titled US Experience in Applying Informed Substitution as a Component of Risk Reduction and Alternative Analysis. In his presentation, Auer cited the use of highly fluorinated substances such as perfluorooctyl sulfonate (PFOS) and perfluorooctanoic acid (PFOA). He suggested that these substances... 

Fluorad FC-26. See Perfluorooctanoic acid Fluorad FC-99. See Tetraethylammonium perfluorooctyl sulfonate Fluorad FC-118. See Ammonium perf I uorooctanoate Fluorad FC-129. See Potassium perf I uorooctoate... 

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