Description

Potassium (Fluorosulfonyl)(Trifluoromethanesulfonyl)Imide is a high-purity, specialty salt primarily used as a key precursor for advanced electrolyte materials. This compound is valued for its role in synthesizing lithium salts that impart superior ionic conductivity and thermal stability to next-generation battery systems. It is an essential material for R&D and production in the energy storage, advanced electronics, and specialty chemical synthesis sectors, where performance and purity are critical.

Application

• Lithium Battery Electrolyte Salt Synthesis: A crucial precursor for manufacturing lithium bis(fluorosulfonyl)imide (LiFSI) and similar high-performance lithium salts.
• Advanced Energy Storage Systems: Development of electrolytes for lithium-ion and lithium-metal batteries requiring enhanced safety, wide operational temperature range, and high voltage stability.
• Supercapacitor & Solid-State Electrolytes: Used in R&D for formulating ionic liquids and solid polymer electrolytes with high ionic conductivity.
• Specialty Chemical Intermediate: Serves as a building block in organic synthesis for novel sulfonylimide-based compounds.
• Academic & Industrial Research: Fundamental studies on ionic conductivity, electrochemical stability, and new electrolyte formulations.
• Electroplating & Metal Finishing: Potential use in specialized plating baths where specific ion properties are required.

Basic Information

Product Name	Potassium (Fluorosulfonyl)(Trifluoromethanesulfonyl)Imide
CAS No.	860653-59-4
Molecular Formula	C2F4KNO4S2
Molecular Weight	305.24 g/mol
Synonyms	Potassium Bis(Fluorosulfonyl)Imide; Potassium Bis(Fluoromethanesulfonyl)Imide; Potassium N-(Fluorosulfonyl)trifluoromethanesulfonimide; KFSI; Potassium FSI; Potassium (Fluorosulfonyl)(trifluoromethylsulfonyl)amide; K[FSO2NSO2CF3]; Potassium 1,1,2,2-tetrafluoro-2-(fluorosulfonyloxy)ethanesulfonamide
EINECS	Contact for details

Quality Control

Our Potassium (Fluorosulfonyl)(Trifluoromethanesulfonyl)Imide is manufactured under controlled conditions to ensure batch-to-batch consistency and high purity, meeting the stringent requirements of advanced material synthesis. Quality is verified through a comprehensive suite of analytical techniques including NMR, HPLC, and ion chromatography. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment.

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) and must be kept under an inert atmosphere or in a desiccator after opening to prevent degradation. Keep away from incompatible materials such as strong acids and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Potassium Content (Titration)	12.6 - 13.2 %
Water Content (KF)	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Chloride (Cl)	≤ 100 ppm
Sulfate (SO4)	≤ 100 ppm

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