Aluminum oxide

  • Aluminum trioxide
  • Alumina
  • alpha-Aluminum oxide
Formula Al2O3
Structure
Description White crystalline solid or powder, very hard, odorless.
Uses Production of aluminum, manufacture of abrasives, refractories, ceramics, electrical insulators, catalyst & catalyst supports, paper, spark plugs, crucibles & laboratory works, adsorbent for gases & water vapors, chromatographic analysis, fluxes, light bulbs, artificial gems, heat resistant fibers, food additive (dispersing agent).

Registry Numbers and Inventories.
CAS 1344-28-1
EC (EINECS/ELINCS) 215-691-6
EC Safety Phrase S 22
RTECS BD1200000
RTECS class Tumorigen
Merck 12,369
Beilstein/Gmelin 48822 (G)
Swiss Giftliste 1 G-7734
Canada DSL/NDSL DSL
US TSCA Listed
Austrailia AICS Listed
New Zealand Listed
Japan ENCS (MITI) Listed
Korea ECL Listed

Properties.
Formula Al2O3
Formula mass 101.94
Melting point, °C 2050
Boiling point, °C 2980
Density 3.97 g/cm3
Solubility in water Insoluble

Hazards and Protection.
Storage Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
WHMIS Insufficient information
Handling Use with adequate ventilation. Minimize dust generation and accumulation. Avoid prolonged or repeated contact with skin. Avoid contact with eyes. Avoid ingestion and inhalation.
Protection Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions.
Stability Stable under normal shipping and handling conditions.
Incompatibilities Reacts with chlorine trifluoride or ethylene oxide.
Decomposition None.

Fire.
Fire fighting Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.
Fire potential Noncombustible material.
NFPA Health 1
  Flammability 0  
  Reactivity 0  

Health.
Exposure limit(s) OSHA PEL: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp) NIOSH REL: See Appendix D
Poison_Class -
Exposure effects Chronic inhalation of fine dusts may cause lung damage.
   Ingestion Ingestion of large amounts may cause gastrointestinal irritation. Expected to be a low ingestion hazard.
   Inhalation May cause respiratory tract irritation. May cause lung damage.
   Skin Dust may cause mechanical irritation. Low hazard for usual industrial handling.
   Eyes Dust may cause mechanical irritation.

First aid
 
   Ingestion If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
   Inhalation Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
   Skin Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
   Eyes Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
USCG CHRIS Code ALO  
HS Code 2818 10 10