Description

Potassium Perfluorononanoate is a highly effective anionic fluorosurfactant and a key perfluorinated carboxylic acid salt. This compound is valued for its exceptional ability to dramatically lower surface tension in aqueous and organic systems, even at very low concentrations. It is a critical material for industries requiring superior wetting, leveling, and anti-foaming performance. The product is supplied under the identifier CAS NO 21049-38-7.

Application

• Firefighting Foams (AFFF): A key ingredient in aqueous film-forming foams for rapid knockdown and suppression of hydrocarbon fuel fires.
• Coating & Polymer Additives: Used as a surfactant and leveling agent in high-performance paints, coatings, and fluoropolymer dispersions to improve substrate wetting and film uniformity.
• Electroplating & Metal Finishing: Functions as a mist suppressant and wetting agent in chromium plating and other metal finishing baths to improve process efficiency and reduce environmental emissions.
• Oil & Gas Production: Employed as a surfactant in enhanced oil recovery (EOR) formulations and as an additive in drilling fluids.
• Specialty Cleaning & Etching: Used in formulations for precision cleaning, electronics etching, and semiconductor manufacturing processes.
• Textile & Leather Treatment: Imparts oil, water, and stain repellency to fabrics, carpets, and leather goods.
• Paper & Packaging Coatings: Provides grease and oil resistance for food packaging and specialty paper products.

Basic Information

Product Name	Potassium Perfluorononanoate
CAS No.	21049-38-7
Molecular Formula	C9F17KO2
Molecular Weight	538.14 g/mol
Synonyms	Perfluorononanoic acid potassium salt; Heptadecafluorononanoic acid potassium salt; Potassium heptadecafluorononanoate; PFNA-K; FC-9; C9 Perfluorinated carboxylate salt; Potassium nonadecafluorononanoate (common misnomer); Potassium perfluoropelargonate
EINECS	244-192-5

Quality Control

Our Potassium Perfluorononanoate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure consistent purity and performance. We provide full traceability and a Certificate of Analysis (COA) with key parameters including assay, identity, and impurity profiles. Specifications can be aligned with industry standards for applications such as firefighting foams and specialty polymers.

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). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
pH (1% Solution)	7.0 - 9.0
Heavy Metals (as Pb)	≤ 10 ppm

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