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Inhibition of Flames by Iron Pentacarbonyl.

pdf icon Inhibition of Flames by Iron Pentacarbonyl. (1020 K)
Rumminger, M. D.; Reinelt, D.; Babushok, V. I.; Linteris, G. T.


Halon Options Technical Working Conference. HOTWC 1998. Proceedings. May 12-14, 1998, Albuquerque, New Mexico, 145-156 pp, 1998.


chemical inhibition; flame chemistry; halogens; flame extinguishment; premixed flames; diffusion flames; halon alternatives


Researchers in the 1960's discovered that certain metallic compounds are even more effective flame inhibitors than the halogens. In particular, iron pentacarbonyl was found to be up to two orders of magnitude more effective at reducing the burning velocity of hydrocarbon-air flames than Br-containing compounds. However, the rapid adoption of CF3Br as a fire suppressant led to a reduction in research on other agents, and the inhibition mechanism of Fe(CO)5 remained undetermined. As part of the search for replacements for CF3Br, the mechanism of FE(CO)5 is being re-examined.