An Overview of Halon 1301 Systems

Construction of an exploratory list of chemicals to initiate the search for halon alternatives

“…Ford [2] has provided a brief perspective on the historical development of halons for firefighting purposes. Carbon tetrachloride (halon 104) was the first halon to be used.…”

“…These investigations identified four halons as being particularly promising [2): trifluorobromomethane (halon 1301 ), bromochlorodifluoromethane (halon 1211 ), dibromodifluoromethane (halon 1202), and dibromotetrafluoroethane (halon 2402). Halons 1301 and 1211 have since been developed and are utilized for a large number of applications.…”

“…Ford [2] discusses a number of large-scale fire tests which have been utilized to test the effectiveness of halon 1301. Results for both class A and class B fires are described.…”

“…Fire tests involving direct application to fires in the open are less numerous. Ford [2] again provides a short review of previous tests. Malcolm describes some very early tests in which various halons were tested for their ability to extinguish Class B fires and cotton waste saturated with gasoline [6].…”

Kinetics of Hydrogen Oxidation Part 3. Catalysis with Hydrogen Bromide

“…The use of combustion inhibitors in practice reveals a system of peculiar phenomena never suspected, namely: disappearance of inhibition, or acceleration of combustion under the action of the inhibitors introduced (Cullis et 01., 1963;Morrison and Scheller, 1972;Nettleton and Stirling, 1974;Lovachev et 01., 1977); diffusive combustion of inhibitors (Creitz, 1961); flame propagation over inhibitor/air mixtures in large-scale experiments (Lovachev, 1976); and inefficiency of inhibitors for deep-seated fires (Fielding et 01., 1975;Ford, 1975). There are probably many similar phenomena not yet observed, and consequently not included into the Fire Science Dictionary (Kuvshinoff, 1977).…”