Description

Triethyl(Methyl)Phosphonium Bis(Fluorosulfonyl)Amide is a high-purity ionic liquid salt characterized by its unique phosphonium cation and fluorosulfonyl amide anion. This compound matters as a key electrolyte component and advanced material precursor, offering high thermal stability and ionic conductivity for demanding applications. It is primarily needed by researchers and manufacturers in the energy storage, advanced materials, and specialty chemical synthesis sectors.

Application

• Electrolyte Additive/Solvent for Lithium-Ion Batteries: Enhances thermal stability, safety, and cycle life of high-voltage battery systems.
• Electrolyte for Supercapacitors: Used in formulations to achieve wide electrochemical windows and high energy density.
• Ionic Liquid Medium for Organic Synthesis: Serves as a green, non-volatile solvent or catalyst for specialized reactions.
• Precursor for Advanced Materials: Used in the synthesis of functional polymers, coatings, and other materials requiring specific ionic properties.
• Research & Development: A key reagent for academic and industrial R&D in electrochemistry and materials science.

Basic Information

Item	Detail
Product Name	Triethyl(Methyl)Phosphonium Bis(Fluorosulfonyl)Amide
CAS No.	1312790-50-3
Molecular Formula	C7H18F2NO4PS2
Molecular Weight	305.32 g/mol
Synonyms	Triethylmethylphosphonium bis(fluorosulfonyl)imide; [Triethylmethylphosphonium][FSI]; TEMP-FSI; Triethylmethylphosphonium bis(fluorosulfonyl)amide; Phospholium, triethylmethyl-, salt with bis(fluorosulfonyl)amide (1:1); Ionic Liquid [TEMP][FSI]
EINECS	Contact for details

Quality Control

Our production of Triethyl(Methyl)Phosphonium Bis(Fluorosulfonyl)Amide adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analysis, including assay, impurity profiling, and moisture content determination. Certificates of Analysis (COA) detailing all specifications are provided and can be tailored to meet specific customer or research-grade requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic nature, the product should be handled under a dry inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption. Recommended long-term storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 100 ppm
Halide Content (Cl⁻, F⁻)	≤ 50 ppm
Heavy Metals (as Pb)	≤ 10 ppm

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