ALUMINIUM OXIDE (ICSC)

ALUMINIUM OXIDE	ICSC: 0351

Date of peer-review: October 2000

alpha-Aluminum oxide
Alumina
Aluminum trioxide

CAS #	1344-28-1	Al₂O₃
RTECS #	BD1200000	Molecular mass: 101.9
UN #
EC #

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible.		In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION

EXPOSURE		PREVENT DISPERSION OF DUST!
Inhalation	Cough.	Local exhaust or breathing protection.	Fresh air, rest.
Skin		Protective gloves.	Rinse and then wash skin with water and soap.
Eyes	Redness.	Safety goggles, or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion		Do not eat, drink, or smoke during work.	Rinse mouth.

SPILLAGE DISPOSAL

PACKAGING & LABELLING

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).

EU Classification
UN Classification

EMERGENCY RESPONSE

STORAGE

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities © IPCS, CEC 2001

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ALUMINIUM OXIDE

ICSC: 0351

IMPORTANT DATA

PHYSICAL STATE; APPEARANCE:
WHITE POWDER.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 10 mg/m^3 (as TWA) A4, for particulate matter containing no asbestos and < 1% crystalline silica (ACGIH 2000). MAK: 1.5 mg/m^3; respirable fraction of the aerosol (1999) MAK: class II,2 (1999)

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.

PHYSICAL PROPERTIES

Boiling point: 3000°C
Melting point: 2054°C
Density: 3.97 g/cm^3
Solubility in water: none

ENVIRONMENTAL DATA

NOTES

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.

ADDITIONAL INFORMATION

LEGAL NOTICE

Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information

    See Also:
       Toxicological Abbreviations