| − | '''Cyanide''' is an important [[polyatomic ion]] with [[chemical formula]] is CN<sup>-</sup>. It is highly [[toxic]], and has been used as a [[weapon]] in various [[murder]]s and [[suicide]]s. | + | '''Cyanide''' is an important [[polyatomic ion]] with [[chemical formula]] is CN<sup>-</sup>. It is highly [[toxic]], and has been used as a [[weapon]] in various [[murder]]s and [[suicide]]s. Some reports suggest that [[Iraq]] has used hydrogen cyanide in chemical attacks against the Kurds during the [[Iran-Iraq War]]. |