Description

Ammonium 2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11-icosafluoroundecanoate is a highly fluorinated ammonium carboxylate salt, a key building block for introducing perfluorinated alkyl chains into various materials. Its value lies in its ability to impart exceptional oil and water repellency, chemical resistance, and low surface energy to surfaces and polymers. This compound is essential for manufacturers in the specialty coatings, textile treatment, and advanced material science sectors seeking to develop high-performance, durable products.

Application

• Fluorinated Surfactant & Additive: Used as a critical raw material for synthesizing high-performance fluorosurfactants and processing aids.
• Textile & Fiber Treatment: Imparts durable water, oil, and stain repellency to fabrics, carpets, and technical textiles.
• Specialty Coatings & Paints: Serves as a key intermediate for formulating anti-graffiti, anti-fouling, and protective coatings with low surface energy.
• Paper & Packaging: Used to create grease-resistant and moisture-barrier coatings for food packaging and specialty papers.
• Polymer Modification: Incorporated as a comonomer or additive to enhance the chemical resistance and surface properties of fluoropolymers and other high-performance plastics.
• Fire-Fighting Foams (Legacy/Precursor): Historically used in the synthesis of certain fluorosurfactants for aqueous film-forming foams (AFFF).
• Electronics & Semiconductor: Potential use in coatings for electronic components requiring moisture protection and chemical inertness.

Basic Information

Product Name	Ammonium 2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11-Icosafluoroundecanoate
CAS No.	5081-07-2
Molecular Formula	C11H6F20NO2
Molecular Weight	576.14 g/mol
Synonyms	Ammonium Perfluoroundecanoate; Ammonium Undecafluoroundecanoate; Ammonium 2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,11-Heneicosafluoroundecanoate; Ammonium 11H-Eicosafluoroundecanoate; Ammonium PFUnDA; APFUnA; Perfluoroundecanoic Acid Ammonium Salt; 11H-Eicosafluoroundecanoic Acid Ammonium Salt
EINECS	Contact for details

Quality Control

Our production of Ammonium 2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11-icosafluoroundecanoate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure consistent purity and performance. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key specifications. We support our global clients with full regulatory documentation and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep away from strong acids and strong bases.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
pH (5% solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 10 ppm

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