Combustion of flame retardants

2,4,6-Tribromoaniline (TBA) is used in the preparation of various dyes, polymers, and, in combination with antimony trioxide, as a flame retardant in the textile and plastic industry. Pyrolysis studies of TBA done previously in our laboratory indicated the presence of some potentially toxic nitrogen analogs of dioxins. Combustion of TBA was further studied using a flame to simulate the conditions of an incinerator; it was observed that, along with the formation of phenazines, small but significant amounts of brominated benzidines and carbazoles were also formed.