Description

Ammonium Perfluorooctanesulfonate is a fluorinated surfactant and an important member of the per- and polyfluoroalkyl substances (PFAS) family, known for its exceptional surface activity and chemical stability. This compound is valued for its ability to dramatically lower surface tension in aqueous and non-aqueous systems, making it a key performance additive in demanding industrial applications. It is primarily utilized in specialized manufacturing sectors where extreme conditions, such as strong acids or high temperatures, are encountered, including advanced electronics, high-performance coatings, and specific chemical synthesis processes.

Application

• Firefighting Foams (AFFF): A critical component in aqueous film-forming foams (AFFF) used for extinguishing hydrocarbon fuel fires.
• Surface Treatment & Coatings: Provides oil, water, and stain repellency for textiles, carpets, and leather products.
• Metal Plating & Etching: Acts as a mist suppressant and wetting agent in chrome plating baths and semiconductor etching processes.
• Specialty Polymer Production: Used as an emulsifier in the polymerization of fluorinated monomers (e.g., PTFE).
• Industrial Cleaners & Surfactants: Serves as a high-performance surfactant in specialized industrial and institutional cleaning formulations.
• Paper & Packaging: Imparts grease and oil resistance to food-contact paper and packaging materials.
• Photographic & Imaging Materials: Historically used in photographic film and printing plates.
• Aviation Hydraulic Fluids: An additive to improve the performance and stability of aircraft hydraulic fluids.

Basic Information

Product Name	Ammonium Perfluorooctanesulfonate
CAS No.	29081-56-9
Molecular Formula	C8H4F17NO3S
Molecular Weight	539.17 g/mol
Synonyms	Ammonium PFOS; Perfluorooctanesulfonic acid ammonium salt; APFOS; 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, ammonium salt; FC-95; FOSA-A; Heptadecafluoro-1-octanesulfonic acid ammonium salt
EINECS	249-415-0

Quality Control

Our Ammonium Perfluorooctanesulfonate is manufactured under strict quality management systems. Each batch is analyzed to confirm identity, purity, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) is provided with every shipment, detailing specifications such as assay (by HPLC), related substances, moisture content (KF), and heavy metals. We adhere to relevant global regulatory frameworks, and our quality commitment ensures product consistency and traceability for our industrial partners.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from strong oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%
Water Content (KF)	≤ 2.0%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.