High-purity perfluoro-4-methyl-2-pentene and its preparation and use

摘要

The toxic perfluoro-2-methyl-2-pentene can be removed from perfluoro-4-methyl-2-pentene by treating the mixture with lower alkanols, the toxic isomer being converted into high boiling-point compounds which can be easily removed. The high-purity perfluoro-4-methyl-2-pentene so obtained is suitable as a substitute for chlorofluorocarbons.