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Chemical Datasheet
Chemical Identifiers
CAS Number |
UN/NA Number |
DOT Hazard Label |
USCG CHRIS Code |
- 1344-28-1
- 1302-74-5 (corundum)
- 12415-34-8 (emery)
|
none
|
data unavailable
|
none
|
NIOSH Pocket Guide |
International Chem Safety Card |
alpha-Alumina
|
|
NFPA 704
data unavailable
General Description
White odorless crystalline powder. Water insoluble. Properties (both physical and chemical) vary according to the method of preparation; different methods give different crystalline modifications. The variety formed at very high temperature is quite inert chemically.
alpha-Alumina is the main component of technical grade alumina. Corundum is natural aluminum oxide. Emery is an impure crystalline variety of aluminum oxide. (NIOSH, 2022)
Hazards
Reactivity Alerts
Air & Water Reactions
Insoluble in water.
Fire Hazard
No information available.
Health Hazard
Excerpt from NIOSH Pocket Guide for alpha-Alumina:
Exposure Routes: Inhalation, ingestion, skin and/or eye contact
Symptoms: Irritation eyes, skin, respiratory system
Target Organs: Eyes, skin, respiratory system (NIOSH, 2023)
Reactivity Profile
ALUMINUM OXIDE is chemically amphoteric (behaves as a weak acid in the presence of base and as a weak base in the presence of acid). May act catalytically. May cause the exothermic polymerization of ethylene oxide. May cause the vigorous polymerization of vinyl chloride [MCA SD-75, 1970]. The degree of subdivision of the aluminum oxide may affect the vigor of such reactions.
Belongs to the Following Reactive Group(s)
- Non-Redox-Active Inorganic Compounds
Potentially Incompatible Absorbents
No information available.
Response Recommendations
Isolation and Evacuation
No information available.
Firefighting
No information available.
Non-Fire Response
No information available.
Protective Clothing
Excerpt from NIOSH Pocket Guide for alpha-Alumina:
Skin: No recommendation is made specifying the need for personal protective equipment for the body.
Eyes: No recommendation is made specifying the need for eye protection.
Wash skin: No recommendation is made specifying the need for washing the substance from the skin (either immediately or at the end of the work shift).
Remove: No recommendation is made specifying the need for removing clothing that becomes wet or contaminated.
Change: No recommendation is made specifying the need for the worker to change clothing after the workshift. (NIOSH, 2023)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
Excerpt from NIOSH Pocket Guide for alpha-Alumina:
Eye: IRRIGATE IMMEDIATELY - If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
Skin: BLOT/BRUSH AWAY - If irritation occurs, gently blot or brush away excess.
Breathing: FRESH AIR - If a person breathes large amounts of this chemical, move the exposed person to fresh air at once. Other measures are usually unnecessary.
Swallow: MEDICAL ATTENTION IMMEDIATELY - If this chemical has been swallowed, get medical attention immediately. (NIOSH, 2023)
Physical Properties
Flash Point: data unavailable
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point:
3632°F
(NIOSH, 2023)
Vapor Pressure:
0 mmHg
(approx)
(NIOSH, 2023)
Vapor Density (Relative to Air): data unavailable
Specific Gravity:
4
(NIOSH, 2023)
- Denser than water; will sink
Boiling Point:
5396°F
at 760 mmHg
(NIOSH, 2023)
Molecular Weight:
101.9
(NIOSH, 2023)
Water Solubility:
Insoluble
(NIOSH, 2023)
Ionization Energy/Potential: data unavailable
IDLH: data unavailable
AEGLs (Acute Exposure Guideline Levels)
No AEGL information available.
ERPGs (Emergency Response Planning Guidelines)
No ERPG information available.
PACs (Protective Action Criteria)
Chemical |
PAC-1 |
PAC-2 |
PAC-3 |
Aluminum oxide; (Alumina) (1344-28-1)
|
15 mg/m3 |
170 mg/m3 |
990 mg/m3 |
(DOE, 2018)
Regulatory Information
EPA Consolidated List of Lists
Regulatory Name |
CAS Number/ 313 Category Code |
EPCRA 302 EHS TPQ |
EPCRA 304 EHS RQ |
CERCLA RQ |
EPCRA 313 TRI |
RCRA Code |
CAA 112(r) RMP TQ |
Aluminum oxide (fibrous forms) |
1344-28-1 |
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313 |
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(EPA List of Lists, 2022)
CISA Chemical Facility Anti-Terrorism Standards (CFATS)
No regulatory information available.
OSHA Process Safety Management (PSM) Standard List
No regulatory information available.
Alternate Chemical Names
- ALPHA-ALUMINA
- ALUMINA
- ALUMINUM OXIDE
- ALUMINUM OXIDE (FIBROUS FORMS)
- ALUMINUM TRIOXIDE
- CORUNDUM
- EMERY
- IMPURE CORUNDUM
- NATURAL ALUMINUM OXIDE