PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Butane | 106-97-8 | 1011 |
17.00
4.01
4.08
4.05
7.01
8.00
7.00
11.00
4.11
|
|||||||||
| Formula | Synonyms | |||||||||||
| C4H10 | BUTANE, BUTANE (DOT FRENCH), BUTANE EN MÉLANGE (DOT FRENCH), BUTANE MIXTURE, BUTANO (DOT SPANISH), BUTANO, MEZCLAS DE (DOT SPANISH), BUTYL HYDRIDE, DIETHYL, LIQUEFIED PETROLEUM GAS, LPG, METHYLETHYLMETHANE, N-BUTANE, NORMAL-BUTANE, R 600, R 600 (ALKANE), UN 1011, UN 1075 | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 58.14 | G | -138.3 | 1820 | 25 | 0.599 | 19000 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 5500 | 17000 | 53000 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 13000 | 40000 | 130000 |
Technical Basis
A review of available sources identified AEGLs for a butane These AEGLs were selected as the TEELs due to their usage 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 that are consistent with Rev. 29A.
Note: The AEGL-1 value require “safety considerations against the hazard(s) of explosion(s) ((≥10% LEL). The AEGL-2 and AEGL-3 values exceed the lower explosion limit of this chemical (≥50% LEL for AEGL-2 and ≥100% LEL for AEGL-3) and are “associated with extreme safety considerations against the hazard(s) of explosion(s).”
• TEEL-1 = AEGL-1
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values that are consistent with Rev. 29A.
Note: The AEGL-1 value require “safety considerations against the hazard(s) of explosion(s) ((≥10% LEL). The AEGL-2 and AEGL-3 values exceed the lower explosion limit of this chemical (≥50% LEL for AEGL-2 and ≥100% LEL for AEGL-3) and are “associated with extreme safety considerations against the hazard(s) of explosion(s).”
References
https://pubchem.ncbi.nlm.nih.gov/compound/Butane
https://www.epa.gov/aegl/butane-results-aegl-program