PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Propane | 74-98-6 | 1978 |
17.00
4.08
4.05
7.01
8.00
4.07
4.11
|
|||||||||
| Formula | Synonyms | |||||||||||
| C3H8 | PROPANE, BOTTLED GAS, DIMETHYL METHANE, DIMETHYLMETHANE, HC 290, LIQUEFIED PETROLEUM GAS, LPG, N-PROPANE, PROPANE (DOT FRENCH), PROPANE EN MÉLANGE (DOT FRENCH), PROPANE MIXTURE, PROPANO (DOT SPANISH), PROPANO, EN MEZCLA (DOT SPANISH), PROPYL HYDRIDE, R 290 | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 44.1 | G | -187.63 | -42.1 | 750 | -42.3 | 0.493 | 23000 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 5500 | 17000 | 33000 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 9900 | 31000 | 60000 |
Technical Basis
A review of available sources identified AEGLs for this chemical. The AEGLs were selected as the TEELs due to their priority among the emergency exposure limits (Section 1).
• TEEL-1 = AEGL-1
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values consistent with Rev. 29A*.
Note: The AEGL-1 value (≥10% LEL) requires “safety considerations against the hazard(s) of explosion(s) must be taken into account.” The AEGL-2 value (≥50% LEL) and AEGL-3 value (≥100% LEL) require “extreme safety considerations against the hazard(s) of explosion(s) must be taken into account”.
• TEEL-1 = AEGL-1
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values consistent with Rev. 29A*.
Note: The AEGL-1 value (≥10% LEL) requires “safety considerations against the hazard(s) of explosion(s) must be taken into account.” The AEGL-2 value (≥50% LEL) and AEGL-3 value (≥100% LEL) require “extreme safety considerations against the hazard(s) of explosion(s) must be taken into account”.
References
AEGLs (Table 7-1) and chemical information (Table 7-2) retrieved from: https://www.epa.gov/aegl/propane-results-aegl-program