7.2 COLORED FLAMES

Colored flames can often be used as a signaling device for terrorists. by putting a ball of colored flame material in a rocket; the rocket, when the ejection charge fires, will send out a burning colored ball. The materials that produce the different colors of flames appear below.

COLOR               MATERIAL                        USED IN
_______________________________________________________________________________
red                 strontium                      road flares,
                    salts                          red sparklers
                    (strontium nitrate)
_______________________________________________________________________________
green               barium salts                   green sparklers
                    (barium nitrate)
_______________________________________________________________________________
yellow              sodium salts                   gold sparklers
                    (sodium nitrate)
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blue                powdered copper                blue sparklers,
                    old pennies
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white               powdered magnesium             firestarters,
                    or aluminum                    aluminum foil
_______________________________________________________________________________
purple              potassium permanganate         purple fountains,
                                                   treating sewage
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