Description

2-[(8-Chloro-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-Hexadecafluoroctyl)Oxyl]-1,1,2,2-Tetrafluoro-Ethanesulfonic Acid,Potassium Salt is a high-value, fully fluorinated anionic surfactant and electrolyte salt, prized for its exceptional chemical and thermal stability. Its unique perfluorinated structure provides superior surface activity and conductivity in demanding environments where conventional materials fail. This compound is essential for advanced R&D and manufacturing in sectors requiring high-performance fluorochemical intermediates, such as specialty polymers, electronics, and energy storage technologies.

Application

• Lithium-Ion Battery Electrolyte Additive: Used to enhance the thermal stability and safety of electrolytes, forming a stable solid-electrolyte interphase (SEI) layer on electrodes.
• Fluorinated Surfactant/Emulsifier: Acts as a high-performance, low-surface-tension surfactant for specialized coatings, fire-fighting foams (AFFF), and fluoropolymer emulsion polymerization.
• Chemical Intermediate: Serves as a key building block for synthesizing more complex perfluoropolyether (PFPE) derivatives and other specialty fluorochemicals.
• Catalyst & Ligand Precursor: Utilized in organometallic chemistry and catalysis, particularly in reactions requiring highly fluorinated, non-coordinating anions.
• Surface Modification Agent: Imparts oil, water, and stain repellency to textiles, paper, and other substrates.
• Electronics Industry: Employed in the formulation of advanced photoresists and etching agents for semiconductor manufacturing.

Basic Information

Product Name	2-[(8-Chloro-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-Hexadecafluoroctyl)Oxyl]-1,1,2,2-Tetrafluoro-Ethanesulfonic Acid,Potassium Salt
CAS No.	83329-89-9
Molecular Formula	C10H2ClF20KO4S
Molecular Weight	664.70 g/mol
Synonyms	Potassium 1,1,2,2-tetrafluoro-2-[(1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-hexadecafluoro-8-chlorooctyl)oxy]ethanesulfonate; Potassium perfluoro(8-chlorooctyloxy)ethanesulfonate; 1,1,2,2-Tetrafluoro-2-[(perfluorooctyl)oxy]ethanesulfonic acid potassium salt (chlorinated); FOSA-K salt (chlorinated derivative); PFOS-related compound (potassium salt); FC-98 (related trade name); Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our production of 2-[(8-Chloro-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-Hexadecafluoroctyl)Oxyl]-1,1,2,2-Tetrafluoro-Ethanesulfonic Acid,Potassium Salt adheres to a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation and KF titration for moisture content, to ensure it meets precise customer specifications. A detailed Certificate of Analysis (COA) is provided with each shipment, guaranteeing traceability and consistent batch-to-batch performance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept under dry, inert conditions to prevent degradation. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Chloride Content	Conforms
Residual Solvents (GC)	Meets ICH guidelines

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