Fluorinated organic substances groups

Fluorinated organic substances are classified into two groups, perfluoro compounds and partially fluorinated compounds. Substances in the former class are widely utilized as functional materials while those in the latter family find biological uses as pharmaceuticals and agrochemicals. 

Perfluoroalkyl and polyfluoroalkyl substances (PEASs) are persistent organic pollutants with nearly ubiquitous occmrence in environmental samples. PEASs have anthropogenic origins over the period 1951 to 2004, it has been estimated that up to 7300 tons (i.e., 6.6 x 10 kg) of PEASs have been released into the environment [145]. PEASs are used in the manufacture of industrial materials and consmner products. The compounds are characterized by a nonpolar fluorinated hydrocarbon chain with a polar end group, and they exhibit both lipophobic and hydrophobic properties. Principal applications include uses as srufactants, nonstick coatings, and stain repellants. The compoimds are also precursors in the synthesis of fluoroelastomers and fluoropol)uners and are used in the... 

Fluorocarbon any of a broad group of organic compounds analogous to hydrocarbons in which all or most of the hydrogen atoms of a hydrocarbon have been replaced by fluorine Flux any material or substance that will reduce the melting or softening temperature of another material when added to it... 

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