CAS 69991-67-9

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Name:
Perfluoropolyether (PFPE)

CAS Number:
69991-67-9

Molecular Formula:
Polymeric — commonly expressed as a mixture of repeating units such as:
[–CF(CF₃)–CF₂–O–]ₓ [–CF₂–O–]ᵧ

Molecular Weight:
Variable (polymer-grade PFPE)

Physical Form:
Clear, colorless liquid

Applications:

  • High-performance lubricant

  • Vacuum pump fluid

  • Dielectric fluid for electronics

  • Heat transfer and cooling medium

  • Used in semiconductor and aerospace applications