Mg
ICSC # 0289
CAS # 7439-95-4
RTECS # OM2100000
UN # 1418
EC # 012-001-00-3 (pyrophoric)
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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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Highly flammable.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames, NO sparks, and NO smoking.
NO contact with moisture, acids, halogens and many other substances.
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Special powder, dry sand, NO other agents.
NO water.
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Explosion
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Finely dispersed particles form explosive mixtures in air.
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Do NOT expose to friction or shock.
Prevent build-up of electrostatic charges (e.g., by grounding).
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Exposure
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PREVENT DISPERSION OF DUST!
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•Inhalation
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Cough.
Laboured breathing.
Headache.
Dullness.
Weakness.
Fever or elevated body temperature.
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•Skin
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•Eyes
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Redness.
Pain.
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Safety goggles.
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•Ingestion
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Abdominal pain.
Diarrhoea.
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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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Do NOT wash away into sewer.
Sweep spilled substance into containers.
Carefully collect remainder,
then remove to safe place.
Personal protection: P2 filter respirator for harmful particles.
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Fireproof.
Separated from
strong oxidants,
acids.
Dry.
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Airtight.
F symbol
R: 15-17
S: 2-7/8-43
UN Hazard Class: 4.3
UN Subsidiary Risks: 4.2
UN Packing Group: ll
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Important Data
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Physical State; Appearance:
GREY
POWDER
Physical Dangers:
Dust explosion possible if in powder or granular form, mixed with air.
If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.
Chemical Dangers:
The substance may spontaneously ignite on contact with air or moisture producing irritating or
toxic fumes
.
Reacts violently with strong oxidants.
Reacts violently with many substances
causing fire and explosion hazard.
Reacts
with
acids
and
water
forming flammable/explosive gas (hydrogen - see ICSC0001)
,
causing fire and explosion hazard.
Occupational Exposure Limits:
TLV not established.
MAK not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.
Effects of Short-Term Exposure:
Inhalation of fumes may cause metal fume fever.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: 1100°C
Melting point: 651°C
Density: 1.7
g/cm3
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Solubility in water:
none
Auto-ignition temperature: 473°C
Explosive limits, vol% in air: see Notes
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Environmental
Data
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N O T E S
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Burns with an intense flame. In order to prevent eye injury do not look directly at magnesium fires.
Reacts violently with fire extinguishing agents such as water, carbon dioxide and powder.
Explosive limits, vol% in air: (LEL) 0.03 kg/m3.
Card has been partly updated in October 2005. See section Emergency Response.
Transport Emergency Card: TEC (R)-43GWS-II+III
NFPA Code: H0; F1; R2;
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ADDITIONAL INFORMATION
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ICSC: 0289
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MAGNESIUM (POWDER)
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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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