What is NFPA Diamond?

1. IDENTIFICATION OF PRODUCT:

Ammonia, Liquid Ammonia, Anhydrous Ammonia. NH₃

NFPA DIAMOND:

General Information:

Essentially pure Ammonia containing minute levels of water (normally <3000 ppm)

2. COMPOSITION / COMPONENT INFORMATION:

General Characteristics of the Chemical Substances:

• Ammonia : >99.5 % by Weight
• Water: <3000 ppm by Weight

12.2 Mobility: Very soluble in water. NH4+ ion is adsorbed by soil.

12.3 Persistence and degradability:

• In the soil, ammonia is quickly oxidized by microorganisms to nitrate ion.
• In fresh water, it may be nitrified by microorganisms or adsorbed on sediment particles and colloids. Substantially biodegradable in water.
• In the atmosphere, it may be degraded by photolysis or neutralised by acid pollutants of the air.

12.4 Bio Accumulation: Low potential

• ACGIH: American Conference of Governmental Industrial Hygienists
• CAS No.: Chemical Abstracts Service. CAS Registration No. is an assigned number to identify a material.
• NIOSH: National Institute for occupational Safety and health
• NFPA: National Fire Protection Association
• NTP: National Toxicology Program
• OSHA: Occupational Safety and Health Administration
• PEL: Permissible Exposure Limit (OSHA)
• REL: Recommended Exposure Limit (OSHA)
• TLV: Threshold Limit Values (ACGIH)
• TWA: Time Weighted Average

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