Tetraethyl ammonium, perfluorooctanesulfonate CAS No. : 56773-42-3 Structural formula: ( C2H5) 4NRFSO3 Molecular Weight: 629 Appearance: white or yellowish powder Content: e 98% Surface tension ³ : 22dynes/ cm ( 0.1% aqueous solution) Application: It is perfluorinated anionic surfactants, such surfactants can be used as decorative and functional chrome area, but also in the process of photographic paper and film production as wetting agents, leveling agents and antistatic agents. In the process of glass etching as wetting agents, acid baths in metal surface treatment process for wetting agent.