Ammonia is considered a high health hazard because it is corrosive to the skin, eyes, and lungs. In addition, over the past 2 years, Region III has The ammonia refrigeration process has seen little change since the early 20th century. The Dangers of Ammonia. This means that, if released, ammonia can be a danger to the immediate environment. ammonia refrigeration systems to gather information on safety practices and technologies and to share its knowledge with these facilities. Problematic procedures may be to blame. Last month, a 5000 pound ammonia leak occurred at a Boston-area seafood warehouse that killed one worker and forced a shelter-in-place order from Boston Police. Exposure to 300 ppm is immediately dangerous to life and health. Ammonia, frequently used commercially in large freezing and refrigeration plants is also called “anhydrous ammonia” because it contains almost no water (it is 99.98% pure). It is used to create a cool environment that helps keep products fresh and prevent bacterial growth. With ammonia, because fewer pounds of refrigerant are required to do the same amount of work, generally speaking, the lower a facility’s temperature requirements, the more cost-effective ammonia becomes. Ammonia refrigeration works much like Industrial Refrigeration systems using synthetic refrigerants, with the major exception being that it uses anhydrous ammonia as the refrigerant. While ammonia’s benefits are numerous, its dangers cannot be trivialized. There are certain risks resulting from ammonia for refrigeration systems. Ammonia refrigeration is commonly found in cold storage, food processing and industrial applications, but the use of ammonia does extend into other markets as well, especially overseas. However, the danger always exists that exposure will occur due to a leak or catastrophic release of Anhydrous Ammonia from a refrigeration system. Typically use hot discharge gas or warm condensed liquid to provide an inexpensive heat source for boiling the cold contaminated liquid ammonia. The true danger from ammonia occurs when a person is unable to leave a gaseous ammonia environment, and when the liquid comes in contact with the body, particularly the eyes. Refrigerant grade anhydrous ammonia is a clear colorless gas or liquid and is considered an irritant. These units can vary in complexity and effectiveness, but generally are capable of operating continuously. The odor threshold reported in literature varies. Any business operating a chiller with ammonia is … A release of Anhydrous Ammonia could happen in a number of ways: physical impact to the refrigeration system, seal leaks, piping corrosion, and hydraulic shock. Ammonia is classified as a Water Hazard Class 2 substance. The purity of the anhydrous ammonia is vital to the properties that make it a good refrigerant. 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