Volume 24, Issue 3 (July 1979)
Trace Amounts of Lead and Bromine in Soot Studied by X-Ray Photoelectron Spectroscopy
Forensic science laboratories are sometimes confronted with the question of whether or not a flammable solvent has been used to initiate a fire. One of the most efficient accelerants is gasoline. Some gasoline for use in motor vehicles contains lead and bromine (tetraethyl lead, tetramethyl lead, and ethylene dibromide) as additives amounting to about 0.4 g/litre. The lead alkyls are added to improve the resistance against knocking, whereas ethylene dibromide is used to expel the lead from the cylinder walls.