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双三氟甲烷磺酰亚胺

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Chemical Information

  • Synonyms: Bis(trifluoromethanesulfonyl)imide; Triflimide

  • Abbreviation: HTFSI

  • Molecular Formula: C₂HF₆NO₄S₂

  • Molecular Weight: 280.14 g/mol

  • Conjugate Base: TFSI⁻ (bis(trifluoromethanesulfonyl)imide)

Physical & Chemical Properties

  • Appearance: White to off-white crystalline solid

  • Acidity: Superacid (very strong Brønsted acid)

  • Solubility: Soluble in water and many polar organic solvents

  • Thermal Stability: High

  • Volatility: Low

Typical Applications

  • Precursor for LiTFSI and other metal TFSI salts

  • Strong acid catalyst in organic synthesis

  • Ionic liquid synthesis

  • Electrochemistry and battery materials research

  • Fluorinated specialty chemical intermediate

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