Perfluoropolyether Carboxylic Acid （PFPE-COOH）(CAS: 51798-33-5)

Perfluoropolyether Carboxylic Acid（PFPE-COOH） CAS：51798-33-5 Appearance：Colorless to pale yellow transparent viscous liquid MW：500–8000（typical 1000/2000/4000） Purity：≥98%–99%Properties：Ultra-low surface tension, excellent hydrophobicity/oleophobicity, acid/alkali resistance, high-temperature stability, outstanding chemical inertness. Reactive terminal -COOH enables grafting with -OH/-NH2 groups. Applications：Key intermediate for PFPE derivatives; used in fluorosurfactants, anti-fouling coatings, release agents, lubricants, sealants; high-end fields such as semiconductors, optics, aerospace.