Ammonium Perfluorooctanesulfonate CAS 29081-56-9

What is Ammonium Perfluorooctanesulfonate CAS 29081-56-9?

Ammonium perfluorooctanesulfonate CAS 29081-56-9 (commonly referred to as PFOS-NH4 or FC-120) is an anionic fluorochemical surfactant belonging to the class of per- and polyfluoroalkyl substances (PFAS). It consists of a fully fluorinated eight-carbon hydrophobic tail combined with a hydrophilic sulfonate head neutralized by an ammonium counterion. Known for its unmatched surface activity, this white to off-white solid is primarily utilized in demanding industrial applications, such as electroplating mist suppression and advanced coatings, where standard hydrocarbon surfactants fail to survive.

Specifications

Features

• Extreme Surface Tension Reduction: The rigid perfluorinated carbon tail creates an exceptionally low surface energy profile, enabling the surfactant to reduce the surface tension of aqueous solutions to levels unattainable by traditional hydrocarbon chemistry.
• Unmatched Chemical & Thermal Stability: Fused with ultra-strong carbon-fluorine bonds, it resists structural breakdown under thermal duress, concentrated acids, strong alkalis, and highly oxidative chemical environments.
• Excellent Wetting & Leveling: Maximizes spreading efficiency and uniformity over low-energy substrates, eliminating surface defects like orange peel, cratering, and pinholes in liquid films.
• High Industrial Resilience: Functions flawlessly in high-temperature polymer processing and harsh electrochemical baths where conventional surfactants immediately decompose.

Applications

• Electroplating & Metal Finishing: Heavily relied upon in hard chromium plating baths as an indispensable fume and mist suppressant, forming a stable surface foam blanket that prevents the release of hazardous hexavalent chromium aerosols.
• High-Performance Coatings & Paints: Incorporated into premium industrial coatings, architectural paints, and floor varnishes as a specialty leveling and wetting additive to enhance fluid flow and substrate adhesion.
• Polymer & Materials Processing: Applied as an internal processing auxiliary or mold release additive to optimize the heat stability, chemical durability, and processing resilience of advanced fluoropolymers and elastomers.
• Specialty Industrial Formulations: Utilized in complex chemical surface treatments, electronic etching fluids, and industrial cleaning matrices where ultra-low surface energy and extreme environmental resistance are mandatory.

Packaging

Mikem offers flexible packaging options, including 25 kg of fiber drums for liquid products and 15–25 kg PP/PE bags for powder products, all customizable to meet your specific needs.