PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Perfluoroisobutylene; (Octafluoro-sec-butene) | 382-21-8 |
15.01
11.01
15.02
7.01
8.00
7.00
4.06
11.00
4.09
4.07
|
||||||||||
| Formula | Synonyms | |||||||||||
| C4F8 | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 200.03 | G | -130 | 7 | 25 | 1.5922 @ 0°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.01 | 0.11 | 0.33 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.082 | 0.90 | 2.7 |
Technical Basis
A review of available sources identified exposure limits for this chemical including an AEGL-2 and AEGL-3. The AEGLs were selected as the TEEL-2 and TEEL-3 due to their priority among the emergency exposure limits (Section 1). Due to insufficient data, an AEGL-1 does not exist for this chemical; therefore, the TEEL-1 value was derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values consistent with Rev. 29A*.
• TEEL-1 = TEEL-2/11
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values consistent with Rev. 29A*.
References
Chemical information: Retrieved from Table 1 of the EPA Technical Support Document. https://www.epa.gov/aegl/perfluoroisobutylene-results-aegl-program
AEGLs: https://www.epa.gov/aegl/perfluoroisobutylene-results-aegl-program
Other exposure limits: https://www.osha.gov/chemicaldata/363