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HAZARDOUS COMPONENTS <br /> MATERIALS) APPROXIMATE % <br /> Sodium Cyanide 100 <br /> HAZARDOUS REACTIVITY <br /> INSTABILITY <br /> Very stable when dry. <br /> INCOMPATIBILITY <br /> Large amounts of highly toxic, flammable hydrogen cyanide (HCN) gas <br /> will be evolved from contact with acids. Reacts violently with <br /> strong oxidizing agents. Water or weak alkaline solution can produce <br /> dangerous amounts of HCN in confined areas. <br /> DECOMPOSITION <br /> Moisture will cause slow decomposition, releasing poisonous HCN and <br /> ammonia gas. <br /> POLYMERIZATION <br /> Will not occur. <br /> FIRE AND EXPLOSION DATA <br /> FLASH POINT Will not burn. FLAMMABLE LIMITS IN AIR, % BY VOL. <br /> AUTOIGNITION TEMPERATURE LOWER Not applicable. <br /> Not applicable. UPPER Not applicable. <br /> FIRE AND EXPLOSION HAZARDS <br /> Will not burn. Sodium cyanide will not be destroyed in an ordinary fire <br /> involving combustible materials such as paper or wood. <br /> EXTINGUISHING MEDIA <br /> Water on fires near sodium cyanide, but minimize amount of water if <br /> containers are opened or burned (see "Incompatibility", above) DO NOT use <br /> carbon dioxide (CO2) which reacts with sodium cyanide to produce hydrogen <br /> cyanide if moisture is present. <br /> SPECIAL FIRE FIGHTING INSTRUCTIONS <br /> Sodium cyanide dissolves readily in water, therefore cyanide solution <br /> runoff may occur if containers are opened or burned. Runoff should be <br /> contained to avoid environmental or safety problems. Contained cyanide <br /> solution can be detoxified with hypochlorite. <br /> E-79954 Date: 10/85 <br /> 2 <br />