Smoke grenade  From Wikipedia, the free encyclopedia Jump to:
navigation, search  Smoke grenades are canister-type grenades
used as ground-to-ground or ground-to-air signaling devices,
target or landing zone marking devices, or as screening devices
for unit movements. Smoke grenades are normally considered non-
lethal, although incorrect use may cause death. The body
consists of a sheet steel cylinder with a four emission holes on
top and one on the bottom to allow smoke release when the
grenade is ignited. The filler consists of 250 to 350 grams of
colored (red, green, orange, gray, yellow, blue, white, black,
or violet) smoke composition (mostly potassium chlorate,
lactose, and a dye). The reaction is exothermic and grenade
casings will often remain scalding hot for some time even after
the grenade is no longer emitting smoke. They are typically used
for military purposes, but can be employed elsewhere safely,
with non-lethal chemical compounds involved.  Another type of
smoke grenade is the bursting variati