alpha-Aluminum oxide
Alumina
Aluminum trioxide
Al2O3
Molecular mass: 101.9
ICSC # 0351
CAS # 1344-28-1
RTECS # BD1200000
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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.
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In case of fire in the surroundings: all extinguishing agents allowed.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
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•Inhalation
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Cough.
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Local exhaust or breathing protection.
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Fresh air, rest.
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•Skin
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Protective gloves.
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Rinse and then wash skin with water and soap.
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•Eyes
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Redness.
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Safety goggles,
or eye protection in combination with breathing protection.
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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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Do not eat, drink, or smoke during work.
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Rinse mouth.
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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 containers; if appropriate, moisten first to prevent dusting.
Wash away remainder with plenty of water.
(Extra personal protection: P1 filter respirator for inert particles).
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Important Data
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Physical State; Appearance:
WHITE
POWDER.
Physical Dangers:
Chemical Dangers:
Occupational Exposure Limits:
TLV: 10 mg/m3 (as TWA) A4, for particulate matter containing no asbestos and < 1% crystalline silica (ACGIH 2000).
MAK: 1.5 mg/m3 (Respirable fraction) 4 mg/m3 (Inhalable fraction)
Pregnancy risk group: D
(DFG 2006).
OSHA PEL: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
NIOSH REL: See Appendix D
NIOSH IDLH: N.D. See: IDLH INDEX
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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:
Inhalation of high concentrations of dusts of this substance may cause eyes and upper respiratory tract irritation.
Effects of Long-Term or Repeated Exposure:
The substance may have effects on the
central nervous system
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Physical
Properties
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Boiling point: 3000°C
Melting point: 2054°C
Density: 3.97
g/cm3
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Solubility in water:
none
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Environmental
Data
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N O T E S
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There is a different and hard crystalline form of aluminium oxide which occurs abundantly in nature under the name corundum (CAS 1302-74-5).
Other melting points: 2015°C (approx.) (corundum).
Occurs also as the minerals: bauxite, bayerite, boehmite, diaspore, gibbsite.
Card has been partly updated in October 2006. See section Occupational Exposure Limits.
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ADDITIONAL INFORMATION
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ICSC: 0351
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ALUMINIUM OXIDE
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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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