- perfluorobutanesulfonic acid
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A chemical compound with a four-carbon fluorocarbon chain and a sulfonic acid functional group, used as a replacement for the persistent, toxic, and bioaccumulative perfluorooctanesulfonic acid.
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Wikipedia foundation.
Durable water repellent — Fluorine containing durable water repellent makes a fabric water resistant. DWR (durable water repellent) is a coating added to fabrics at the factory to make them water resistant (or hydrophobic). Most factory applied treatments are… … Wikipedia
Nonaflate — Skeletal formula of the nonaflate anion Nonaflate, CF3CF2CF2CF2SO3– is the common name given to nonafluorobutanesulfonates, the salts or esters of perfluorobutanesulfonic acid. Its uses are similar to those of triflate … Wikipedia