In an article published on February 21, 2018 by regulatory news provider Chemical Watch, reporter Clelia Oziel informed about a new report by the Norwegian Environment Agency investigating the sources of perfluorohexane sulfonic acid (PFHxS, CAS 355-46-4) emissions into the environment. According to the report, “there is in general a lack of available information on the quantitative production levels and descriptions of product specific uses of PFHxS and related substances.” The agency highlighted that more and better information on production and use of PFHxS is needed in order to assess the risks it may pose.
Oziel explained that “PFHxS is often used as a substitute for perfluorooctane sulfonate (PFOS)” and it may be used in “fire-fighting foams, food contact papers, waterproofing agents and cleaning and polishing products.” Further, PFHxS is very persistent, has long-range transport potential, and higher bioaccumulation potential in humans than PFOS. Norway has nominated PFHxS, its salts and related compounds for measures under the Stockholm Convention. In July 2017, the European Chemicals Agency (ECHA) added PFHxs to the REACH Candidate List of substances of very high concern (SVHCs) for authorization (FPF reported).
Clelia Oziel (February 21, 2018). “Norwegian study finds scant information on PFHxS.” Chemical Watch