PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aluminum oxide; (Alumina) | 1344-28-1 |
10.00
3.03
19.00
3.05
4.07
11.01
15.01
15.02
|
||||||||||
| Formula | Synonyms | |||||||||||
| Al2O3 | ALUMINUM OXIDE, ALUMINA, ALUMINUM OXIDE (FIBROUS FORMS), ALUMINUM TRIOXIDE | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 101.96 | S | 2054 | 2977 | 7.5 | 2351 | 3.99 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 3.6 | 41 | 240 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 15 | 170 | 1000 |
Technical Basis
Analysts used two different methods, converged on same values.
Sabella, using accepted multiplying factors listed in Table 3.5: Dose basis = 5 mg/m3 (resp):
TEEL-1 = OSHA PEL TWA*3
TEEL-2 = TEEL-1*11
TEEL-3 = TEEL 2*6
Lawter, using toxicity data and applying Table 3.4:
TEEL-1 = TEEL-2/11
TEEL-2 = TEEL-3/6
TEEL-3: LD50, Rat, Oral, Dose = 5000 mg/kg
Both methods align with the values presented in Rev 29A and did not result in a change.
TEELs were rounded to two significant figures and converted from referenced units to either ppm or mg/m3, providing both values.
Sabella, using accepted multiplying factors listed in Table 3.5: Dose basis = 5 mg/m3 (resp):
TEEL-1 = OSHA PEL TWA*3
TEEL-2 = TEEL-1*11
TEEL-3 = TEEL 2*6
Lawter, using toxicity data and applying Table 3.4:
TEEL-1 = TEEL-2/11
TEEL-2 = TEEL-3/6
TEEL-3: LD50, Rat, Oral, Dose = 5000 mg/kg
Both methods align with the values presented in Rev 29A and did not result in a change.
TEELs were rounded to two significant figures and converted from referenced units to either ppm or mg/m3, providing both values.
References
Temporary Emergency Exposure Limits for Chemicals: Methods and Practice (DOE-HDBK-1046-2016)
https://www.cdc.gov/niosh/npg/npgd0021.html
https://pubchem.ncbi.nlm.nih.gov/source/hsdb/506