Combustion Science and Technology, Vol.131, No.1-6, 187-191, 1998
Inhibition of combustion by bromine-free polyfluorocarbons - 2. Burning velocities of methane and n-heptane flames with polyfluorocarbons containing oxygen, nitrogen, or sulfur
To estimate the inhibition effect of some polyfluorocarbons containing N, O, or S atoms such as (CF3)(3)N, (CF3)(2)NCF2H, (C2F5)(2)O, CF3SF5, and C2F5SF5 on flame propagation, the laminar burning velocity was measured for mixtures of 9.50vol% methane, 90.00vol% air, and 0.50vol% inhibitor and of 1.87vol% n-heptane, 97.63vol% air, and 0.50vol% inhibitor. The five compounds have higher ability as fire suppressants than CF3CHFCF3 and CF3H, which have already been put to practical use.