Trade name FC-98 Chemical name Potassium perflurobutylsulfonate CAS No.: 29420-49-3 Assay ≥95% Appearance White or yellowish powder PH value 5-7 Decomposition temperature 300°C Application It is a kind of perfluoro anion surfactant and has the general characters of fluoro surfactant. It is widely used as inflaming retardant for synthetic materials, especially for polycarbonate.