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Description
Rating：
FX-4 Perfluorobutylsulfonylfluoride
Cas no:375-72-4
Assay：95%
Appearance: colorless and transparent liquid
Application: It is the homologue of perfluorooctylsulfonylfluoride and can be used to synthetize various of special perfluoro surfactants. Its potassium salt is an excellent anion surfactant and fire retardant for polycarbonate.
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