KTf2N, CAS No. 90076-67-8

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90076-67-8

Catalog No. EBD1102256

CAS 90076-67-8

Name KTf2N

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Basic Information

Synonyms: potassiumbis(trifluoromethanesulfonly)imide potassiumbis(trifluoromethanesulfonyl)imide potassiumbis(trifluoromethylsulfonyl)imide potassiumtrifluoromethanesulfonimide,min.97% potassiumtrifluoromethanesulfonimide KTf2N KN(Tf)2 K[NTf2] Tf2N-K+ KNTf2 KTFSI Methanesulfonamide,1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]-,potassiumsalt(1:1) Methanesulfonamide,1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]-,potassiumsalt(9CI) Bis[(trifluoromethyl)sulfonyl]imidepotassiumsalt Potassiumbis(perfluoromethanesulfonyl)imide Potassiumbis[(trifluoromethyl)sulfonyl]amide(1-) Potassiumbis(trifluoromethyls

Molecular Formula: C2F6NO4S2*K

Molecular Weight: 319.25

Categories: Materials Chemistry > Battery and Energy Storage Materials > Lithium and Sodium Salt Precursors Synthetic Chemistry > Basic Synthetic Reagents > Other Basic Synthetic Reagents

Product Description:

Potassium bis(trifluoromethanesulfonyl)imide (K[TFSI], CAS 90076-67-8) is a potassium salt of the bis(trifluoromethanesulfonyl)imide anion. It is a white crystalline powder with high thermal stability and excellent electrochemical properties. Its primary application is as a key precursor for the synthesis of ionic liquids, particularly those based on the bis(trifluoromethanesulfonyl)imide ([TFSI]⁻) anion. These ionic liquids are extensively used as advanced electrolytes in high-performance lithium-ion and sodium-ion batteries due to their wide electrochemical window, high ionic conductivity, and good thermal stability. K[TFSI] serves as a common starting material for metathesis reactions to produce other [TFSI]-based salts (e.g., Li[TFSI], Na[TFSI]). Furthermore, it finds use as a supporting electrolyte in electrochemical studies and as a source of the non-coordinating [TFSI]⁻ anion in various synthetic and materials chemistry applications. It is hygroscopic and should be handled under inert atmosphere to prevent decomposition.

Physical Properties

Melting Point: 198-203 °C

Safety Information

Packing Level: II

Hazard Category: 8

Transport Codes: 1759