Description

Potassium 1,1,2,2-tetrafluoro-2-{[1,1,1,2,3,3-hexafluoro-3-(pentafluoroethoxy)prop-2-yl]oxy}ethanesulphonate, also known as Potassium perfluoro(4-methyl-3,6-dioxaoctane)sulphonate, is a high-performance, fully fluorinated anionic surfactant and electrolyte salt. This compound is valued for its exceptional chemical and thermal stability, low surface tension, and high ionic conductivity in demanding environments. It is primarily utilized in advanced electrochemical applications and as a specialty surfactant in high-value industrial formulations where standard hydrocarbon-based materials fail.

Application

• Lithium-ion Battery Electrolytes: As a key electrolyte additive or co-salt to enhance thermal stability, cycle life, and safety of high-voltage cathodes.
• Fuel Cell Membranes: Used in the formulation of proton exchange membranes (PEMs) for improved ionic conductivity and durability.
• Fluorinated Surfactants & Coatings: Acts as a critical component in fire-fighting foams, stain-resistant coatings, and leveling agents for specialty polymers.
• Electroplating & Surface Treatment: Employed in hard chrome and other metal plating baths for superior wetting and throwing power.
• Chemical Synthesis: Serves as a stable catalyst or phase-transfer catalyst in fluorination reactions and other specialized organic syntheses.
• Semiconductor Processing: Used in etching and cleaning formulations for silicon wafers due to its purity and stability.

Basic Information

Product Name	Potassium 1,1,2,2-tetrafluoro-2-{[1,1,1,2,3,3-hexafluoro-3-(pentafluoroethoxy)prop-2-yl]oxy}ethanesulphonate
CAS No.	70755-50-9
Molecular Formula	C7H2F15KO5S
Molecular Weight	518.23 g/mol
Synonyms	Potassium perfluoro(4-methyl-3,6-dioxaoctane)sulphonate; Potassium 1,1,2,2-tetrafluoro-2-(1,1,1,2,3,3-hexafluoro-3-(pentafluoroethoxy)-2-propanyloxy)ethanesulfonate; PFOS alternative (C7); FC-98 (Potassium Salt); 3,6-Dioxa-4-methyloctanesulfonic acid, 2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluoro-, potassium salt; Perfluoro(4-methyl-3,6-dioxaoctanesulfonic acid) potassium salt; Potassium perfluorobutylethyl sulfonate; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our production of Potassium perfluoro(4-methyl-3,6-dioxaoctane)sulphonate adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and impurity profiling, Karl Fischer titration for water content, and ICP-MS for trace metal analysis, to ensure it meets precise customer specifications. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and compliance with relevant industry standards.

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 and under a dry inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5% w/w
Fluoride Content	≤ 50 ppm
Heavy Metals (as Pb)	≤ 10 ppm
pH (5% aqueous solution)	6.0 - 8.0

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