Anhydrous ammonia flammability

Poison A gas explosives-A/B, organic peroxide, flammable solid, materials dangerous when wet, chlorine, flourine, anhydrous ammonia, radioactive materials, NFPA 3 4 for any categories including SF>ecial hazards. PCB s fire, DOT inhalation hazzird, EPA extremely hazardous substances, and cryogenics. 

A number of flammable liquids and gases used in processing facilities are stored in refrigerated vessels. Common among these are liquefied gases, such as liquefied natural gas (LNG) and anhydrous ammonia, and a number of reactive or self-polymerizing liquids, such as acrylic acid and organic peroxides. 

Caution. Anhydrous ammonia does not generally constitute a fire or explosion hazard, but it is flammable in high concentrations, and contact with flames and electrical sparks should be avoided. 

Truck transportation rates for anhydrous ammonia are relatively high because of liability insurance rates and the need to use specialized equipment. Distribution is further complicated by attempts to restrict the movement of ammonia in some jurisdictions. In 1990, the U.S. Department of Transportation classified anhydrous ammonia as a non-flammable gas and required shipments to be marked with the words inhalation hazard. International shipments are required to carry the inhalation hazard and poison gas markings57. 

ARTIC (74-87-3) Flammable gas (flash point <32°F/<0 C). Moisture causes decomposition. Violent reaction with strong oxidizers, acetylene, anhydrous ammonia, amines, fluorine, interhalogens, magnesium, potassium, sodium, zinc, and their alloys. Reacts with barium, lithium, titanium. Contact with powdered aluminum or aluminum chloride forms pyrophoric trimethylaluminum may cau.se ignition or explosion. Attacks plastics, rubber, and coatings. 

DINITROGEN MONOXIDE (10024-97-2) May form explosive mixture with flammable and reactive gases, including anhydrous ammonia, carbon monoxide, chlorine trifluoride, hydrogen, hydrogen sulfide, nitryl fluoride, phosphine. Nonflammable but supports combustion as temperature increases above 572°F/300°C, it becomes both a strong oxidizer and self-reactive. Pyrophoric at elevated temperatures. Reacts, possibly violently, with aluminum, ammonia, boron, hydrazine, lithium hydride, sodium, tungsten carbide. 

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