Ernst-Christian Koch
ABSTRACT: The obstacles to producing red colored pyrotechnic flames with lithium compounds are discussed. The principle emitter of red light in such flames is atomic lithium. Hydrogen and halogens in the flame gases are expected to have a substantial effect on the concentration of atomic lithium. The development of effective Libased red color compositions therefore depends primarily on the proper control of the concentrations of hydrogen and halogens in the flame to maximize the formation of atomic Li. Some possible ways of doing this are proposed and are supported by thermodynamic calculations.
Keywords: lithium, pyrotechnics, red flame, color agent
Ref: JPyro, Issue 13, 2001, pp1-9
(J13_1)
© Journal of Pyrotechnics and CarnDu Ltd
