Editing Smoke screen (section)

===Smoke grenades===
{{Main|Smoke grenade}}
[[File:171029-M-MN519-0191 (37534718814).jpg|thumb|A [[French Foreign Legion|French Legionnaire]] moving through a smoke screen generated using a smoke grenade]]
These are canister-type [[grenades]] used as a ground-to-ground or ground-to-air signalling device. The body consists of a steel sheet metal cylinder with a few emission holes on the top and/or bottom to allow smoke release when the [[smoke composition]] inside the grenade is ignited. In those that produce [[colored smoke]], the filler consists of 250 to 350&nbsp;grams of colored (red, green, yellow or violet) smoke mixture (mostly [[potassium chlorate]], [[sodium bicarbonate]], [[lactose]] and a [[dye]]). In those that produce screening smoke, the filler usually consists of HC smoke mixture (hexachloroethane/zinc) or TA smoke mixture (terephthalic acid). Another type of smoke grenade is filled with [[white phosphorus incendiary|white phosphorus]] (WP), which is spread by explosive action. The phosphorus catches fire in the presence of air, and burns with a brilliant yellow flame, while producing copious amounts of white smoke (phosphorus pentoxide). WP grenades double as [[incendiary grenade]]s.