Explosion hazards nitrogen trichloride

Very dangerous fire hazard when exposed to heat, flame, or oxidizers. Moderately explosive when exposed to heat or flame. Explodes on contact with oxygen difluoride nitrogen trichloride bromine pentafluoride chlorine trifluoride dichlorine oxide silver fulminate. Potentially explosive reaction with copper + oxygen. Explosive reaction when heated with perchloryl fluoride (above 100°C), oxygen (above 280°C). Reacts with 4-bromobenzenediazonium chloride to form an explosive product. 

Very dangerous fire hazard by spontaneous chemical reaction. Moderately explosive when exposed to flame. Explosive reaction with dichlorine oxide, silver nitrate, concentrated nitric acid, nitrogen trichloride, oxygen. Reacts with mercury(II) nitrate to form an explosive product. Ignition or violent reaction with air, boron trichloride, Br2, CI2, aqueous halogen solutions, iodine, metal nitrates, NO, NCI3, NO3, N2O,... 

SAFETY PROFILE Moderately toxic by intravenous and subcutaneous routes. Human reproducdve effects by intraplacental route fertility effects. Experimental reproducdve effects. Human mutadon data reported. A human skin irritant. Quesdonable carcinogen with experimental carcinogenic and neoplasdgenic data. Reacts with sodium hypochlorite or calcium hypochlorite to form the explosive nitrogen trichloride. Incompadble with NaN02, P2CI5, nitrosyl perchlorate. Preparadon of the N-labeled urea is hazardous. When heated to decomposidon it emits toxic fumes of NOx. 

Khattak, M. A., Engineering Horizons (Pakistan), 1991, (Aug.), 33 Chlorine reacts with ammonia and compounds to form the treacherously explosive nitrogen trichloride. A change was made to ammonia as refrigerant in the production of liquid chlorine some months later minor explosions when transferring the chlorine culminated in several fatahties when the delivery pipe, in which the less volatile trichloride had presumably concentrated by partial evaporation of chlorine, shattered. Fiuther explosions were experienced while decontaminating the plant. See Preparative hazard, above... 

Most hazardous reactions of potassium hydroxide are similar to those of caustic soda and many are well documented (NFPA 1986). Explosions occurred when caustic potash was added to liquid chlorine dioxide (MeUor 1946), nitrogen trichloride, A-nitrosomethyl urea in n-butyl ether (NFPA 1986), and maleic anhydride (MCA 1960). Reaction with phosphorus yields toxic and flammable gas phosphine, which ignites spontaneously. Explosion may occur if impure tetrahydrofuran is heated or distilled in the presence of concentrated caustic potash solution. 

Precaution Incompat. with NaNOj, P2CI5, nitrosyl perchlorate reacts with sodium or calcium hypochlorite to form explosive nitrogen trichloride prep, of N urea is hazardous... 

The next two sections discuss protection against process hazards that are peculiar to chlorine processing. Section 9.1.10 covers emergency pressure relief both before and after the compressors. An important part of the discussion covers the design and operation of vent scrubbers to prevent the release of chlorine to the environment. Section 9.1.11 is dedicated to the explosion hazards presented by hydrogen and nitrogen trichloride. The sources of NCI3 are discussed, as well as its fate in the process. This includes the mechanisms of accumulation and safe decomposition. 

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