Chile saltpeter
NaNO3
Molecular mass: 85
ICSC # 0185
CAS # 7631-99-4
RTECS # WC5600000
UN # 1498
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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.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO contact with combustibles and reducing agents.
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In case of fire in the surroundings: use appropriate extinguishing media.
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Explosion
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Risk of fire and explosion on contact with reducing agents.
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Exposure
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PREVENT DISPERSION OF DUST!
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•Inhalation
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Cough.
Sore throat.
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Local exhaust or breathing protection.
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Fresh air, rest.
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.
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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.
Headache.
Laboured breathing.
Confusion.
Nausea.
Unconsciousness.
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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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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Sweep spilled substance into plastic or glass containers.
Wash away remainder with plenty of water.
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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
CRYSTALS
.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating
producing nitrogen oxides and oxygen
, which increases fire hazard.
The substance is a strong oxidant and reacts with combustible and reducing materials,
causing fire and explosion hazard.
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
and
by ingestion.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quicklywhen dispersed.
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 when ingested.
The effects may be delayed.
Medical observation is indicated.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point (decomposes): 380°C
Melting point: 308°C
Density: 2.3
g/cm3
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Solubility in water, g/100 ml at 25°C: 92.1
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Environmental
Data
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N O T E S
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Rinse contaminated clothes (fire hazard) with plenty of water.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Transport Emergency Card: TEC (R)-51S1498
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ADDITIONAL INFORMATION
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ICSC: 0185
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SODIUM 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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