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      - Ammonia
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 Ammonia

Gas Name: Ammonia          Chemical Formula: NH    Synonyms:  Anhydrous Ammonia, R717

Product Uses/Sources/Applications

Ammonia is used in its gaseous, liquefied, and aqueous forms in a number of applications including:

  • Refrigerant (R717) – used extensively in food processing applications and ice rink applications
  • A main component in the production of commercial fertilizer
  • Used extensively in the production of commercial and household cleaning products
  • Pharmaceutical production
  • Papermaking:  pulping and coating
  • Rubber production

Hazards

Toxicity
     Short Term (15-minute STEL*)
     Long-term (8-hr TWA*)
35 ppm
25 ppm
Flammability
     Lower Explosive Limit (LEL): 15% by volume

NIOSH Pocket Guide                                                                Click here for link 

Physical Properties

Appearance and Odour Colorless gas with an irritating, pungent odor
Relative density (air = 1.0) 0.597

Armstrong Monitoring Recommends

Sensor Type: Electrochemical Diffusion Type
Standard range: 0-50 or 0-100 ppm
Standard trip points: 25 ppm, 35 ppm
Recommended sensor mounting height: ceiling level around probable source of leak

* The exposure limits referenced are based on various listings including those of the Ontario Ministry of Labour and the US National Institute of Occupational Safety Health (NIOSH). Please refer to your local regulations for the limits in your area.




     

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