Nitric acid, ammonium salt
NH4NO3
Molecular mass: 80.1
ICSC # 0216
CAS # 6484-52-2
RTECS # BR9050000
UN # 1942
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Not combustible but enhances combustion of other substances.
Explosive.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO contact with combustibles or reducing agents.
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Water in large amounts.
NO other extinguishing agents.
In case of fire in the surroundings: use flooding amounts of water in the early stages.
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Explosion
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Risk of fire and explosion under confinement and high temperatures.
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Evacuate danger area!
In case of fire: keep drums, etc., cool by spraying with water.
Combat fire from a sheltered position.
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Exposure
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PREVENT DISPERSION OF DUST!
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•Inhalation
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Cough.
Headache.
Sore throat.
See Ingestion.
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Local exhaust or breathing protection.
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Fresh air, rest.
Artificial respiration may be needed.
Refer for medical attention.
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•Skin
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Redness.
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Protective gloves.
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First rinse with plenty of water, then remove contaminated clothes and rinse again.
Refer for medical attention.
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•Eyes
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Redness.
Pain.
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Safety goggles.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal pain.
Blue lips or fingernails.
Blue skin.
Convulsions.
Diarrhoea.
Dizziness.
Vomiting.
Weakness.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Evacuate danger area!
Consult an expert!
Sweep spilled substance into non-combustible containers.
Wash away remainder with plenty of water.
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Provision to contain effluent from fire extinguishing.
Separated from
combustible and reducing substances.
Dry.
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UN Hazard Class: 5.1
UN Packing Group: III
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Important Data
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Physical State; Appearance:
COLOURLESS
,
HYGROSCOPIC
TO WHITE
SOLID IN VARIOUS FORMS
Physical Dangers:
Chemical Dangers:
Heating may cause violent combustion or explosion.
The substance decomposes
on heating or
producing
toxic fumes
(
nitrogen oxides
.)
The substance is a strong oxidant and reacts with combustible and reducing materials.
Occupational Exposure Limits:
TLV not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.
Effects of Short-Term Exposure:
The substance
is irritating to
the eyes
,
the skin
and
the respiratory tract
.
The substance may cause effects on the
blood
, resulting in
formation of methaemoglobin.
Medical observation is indicated.
The effects may be delayed.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Decomposes below boiling point at about 210°C
Melting point: 170°C
Density: 1.7
g/cm3
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Solubility in water, g/100 ml at 20°C: 190
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Environmental
Data
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This substance may be hazardous to the environment; special attention should be given to water quality.
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N O T E S
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Becomes shock-sensitive when mixed with organic materials.
Rinse contaminated clothes (fire hazard) with plenty of water.
Depending on the degree of exposure, periodic medical examination is suggested.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Card has been partly updated in October 2005. See section Emergency Response.
Transport Emergency Card: TEC (R)-51S1942 or 51GO2-I+II+III
NFPA Code: H 2; F 0; R 3; OX
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ADDITIONAL INFORMATION
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ICSC: 0216
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AMMONIUM NITRATE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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