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File: 082696_doc1_628.txt
Toxicity Data for Anhydrous Ammonia
1. The harmful effects of ammonia as a function of concentration
in the air is indicated below. This information was obtained from
the Defense Intelligence Agency, Washington, D. C. (Tasker Number
2199, DTG: 140740Z NOV 90).
Concentration of Ammonia Effects
in Air
Percent PPM
0.0025 25 Threshold limit value
(TLV)
0.005 50 Odor is more detectable
0.01 100 maximum prolonged
exposure, start of
discomfort
0.04-0.07 400-700 beast amount to cause
irritation to eyes, nose,
- and throat
0.17 1700 Breathing difficult,
spasmodic coughing
0.2-0.5 2000-5000 Dangerous for short-time
exposure, 30 min
0.5 5000 Rapidly fatal in
short-time exposure
2. Several relevant properties of ammonia are listed below.
Corresponding data for water and air are also provided for
purposes of comparison.
a. Specific gravity: 0.7714 g/iiiL (water = I g/mb; therefore,
ammonia is lighter than water)
b. Boiling point: -28 degrees F (water = 212 degrees F)
C. Vapor density: 0.6 gIL (Air = I giL; therefore, ammonia
is lighter than air)
d. Flammability: Not flammable under conditions likely to be
encountered.
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