Cyanogen chloride Cyanogen chloride is a toxic chemical compound with the formula NCCl. This linear, triatomic pseudohalogen is an easily condensed colorless gas. More commonly encountered in the laboratory is the related compound cyanogen bromide , a room-temperature solid that is widely used in biochemical analysis and preparation.Synthesis, basic properties, structure Cyanogen chloride is a molecule with the connectivity ClCN. Carbon and chlorine are linked by a single bond , and carbon and nitrogen by a triple bond . It is a linear molecule , as are the related cyanogen halides. Cyanogen chloride is produced by the oxidation of sodium cyanide with chlorine. This reaction proceeds via the intermediate cyanogen.The compound trimerizes in the presence of acid to the heterocycle called cyanuric chloride . Cyanogen chloride is slowly hydrolyzed by water to release cyanate and chloride ions Applications in synthesis Cyanogen chloride is a precursor to the sulfonyl cyanides and chlorosulfonyl isocyanate , a useful reagent in organic synthesis .Safety Also known as CK , cyanogen chloride is a highly toxic blood agent , and was once proposed for use in chemical warfare . It causes immediate injury upon contact with the eyes or respiratory organs . Symptoms of exposure may include drowsiness , rhinorrhea , sore throat , coughing, confusion , nausea , vomiting , edema , loss of consciousness , convulsions, paralysis , and death. It is especially dangerous because it is capable of penetrating the filters in gas masks , according to United States analysts. CK is unstable due to polymerization , sometimes with explosive violence .Chemical weapon Cyanogen chloride is listed in schedule 3 of the Chemical Weapons Convention: all production must be reported to the OPCW . By 1945, the U.S. Army's Chemical Warfare Service developed chemical warfare rockets intended for the new M9 and M9A1 Bazookas. An M26 Gas Rocket was adapted to fire cyanogen chloride-filled warheads for these rocket launchers . As it was capable of penetrating the protective filter barriers in some gas masks, it was seen as an effective agent against Japanese forces because their standard issue gas masks lacked the barriers that would provide protection against cyanogen chloride. The US added the weapon to its arsenal but the CK rocket was never deployed or issued to combat personnel.
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