alpha-Alumina |
Synonyms & Trade Names Alumina, Aluminum oxide, Aluminum trioxide [Note: ?-Alumina is the main component of technical grade alumina. Corundum is natural Al2O3. Emery is an impure crystalline variety of Al2O3.] |
CAS No. 1344-28-1 |
RTECS No. BD1200000 |
DOT ID & Guide |
FormulaAl2O3 |
Conversion |
IDLH N.D.
See: IDLH INDEX |
Exposure Limits NIOSH REL: See Appendix D
OSHA PEL†: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp) |
Measurement Methods
NIOSH 0500 , 0600;
OSHA ID109SG , ID198SG
See: NMAM or OSHA Methods |
Physical Description White, odorless, crystalline powder. |
MW: 101.9 |
BP: 5396°F |
MLT: 3632°F |
Sol: Insoluble |
VP: 0 mmHg (approx) |
IP: NA |
Sp.Gr: 4.0 |
Fl.P: NA |
UEL: NA |
LEL: NA |
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| Noncombustible solid, but dusts may form explosive mixtures in air. |
Incompatibilities & Reactivities Chlorine trifluoride, hot chlorinated rubber, acids, oxidizers [Note: Hydrogen gas may be formed when finely divided iron contacts moisture during crushing & milling operations.] |
Exposure Routes inhalation, ingestion, skin and/or eye contact |
Symptoms irritation eyes, skin, respiratory system |
Target Organs Eyes, skin, respiratory system |
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Personal Protection/Sanitation (See protection codes)
Skin: No recommendation
Eyes: No recommendation
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Blot/brush away
Breathing: Fresh air
Swallow: Medical attention immediately |
Respirator Recommendations Not available.
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0351
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