Thermal Decomposition of Ethyl, Isopropyl and t-Butyl Fluorides in the Gas Phase

Abstract

Ethyl, isopropyl and t-butyl fluorides decompose in a flow system into hydrogen fluoride and the corresponding olefin by a predominantly molecular mechanism. The first order rate constants are given by the Arrhenius equations: ethyl fluoride (520–600°C) : k/s–1= 1012.16±0.04exp–59 200±2000/RT, isopropyl fluoride(445–522°C) : k/s–1= 1011.83±0.02 exp–53 900±800/RT, t-butyl fluoride (329–370°C) : k/s–1= 1013.96±0.01 exp–50 400±900/RT.