Limits to the effectiveness of metal-containing fire suppressants

Abstract

This report reviews the literature on metal inhibition of flames and identifies metal species with potential as fire suppressant additives. To provide a basis for discussion, the detailed mechanism of inhibition of iron is reviewed, and the reasons for its loss of effectiveness are described. The demonstrated flame inhibiting properties of other metals is then discussed, followed by a description of the potential loss of effectiveness for these other metals.

Catalytic inhibition of laminar flames by transition metal compounds

“…Equivalent N 2 /O 2 limiting oxygen index for extinction of polyethylene (PE) halogen blends or methane-air cup burner flames with MMT, Fe(CO)5 , and Sn(CH 3 ) 4[152].…”