[[Zyklon B]] is a [[cyanide]]-based toxic gas. A modern application of it this substance is as an [[insecticide]]. However, it is also lethal to humans in sufficient concentration. During [[World War II]], the German [[Nazi party]] used Zyklon B to kill millions of people throughout the holocaust. | [[Zyklon B]] is a [[cyanide]]-based toxic gas. A modern application of it this substance is as an [[insecticide]]. However, it is also lethal to humans in sufficient concentration. During [[World War II]], the German [[Nazi party]] used Zyklon B to kill millions of people throughout the holocaust. |