Perfluorobutanesulfonic acid potassium salt is a chemical compound used in various industrial applications. It is commonly known as PFBS-K and is a type of perfluorinated compound. PFBS-K is widely used as a surfactant in the production of polymers, coatings, and electronics. Its unique properties, such as high thermal stability and chemical resistance, make it a valuable ingredient in many manufacturing processes. Additionally, PFBS-K is used in the production of specialty chemicals, cleaning agents, and in certain medical applications. Its ability to lower the surface tension of liquids makes it a versatile ingredient in various industries.