PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Propylene oxide; (Methyl ethylene oxide) | 75-56-9 | 1280 |
14.01
4.01
11.01
14.02
4.08
4.05
7.01
8.00
7.00
11.00
|
|||||||||
| Formula | Synonyms | |||||||||||
| C3H6O | PROPYLENE OXIDE, (.+-.)-1,2-EPOXYPROPANE, (.+-.)-2-METHYLOXIRANE, (.+-.)-EPOXYPROPANE, (.+-.)-METHYLOXIRANE, (.+-.)-PROPYLENE OXIDE, 1,2-EPOXY PROPANE, 1,2-EPOXYPROPANE, 1,2-PROPYLENE OXIDE, 2,3-EPOXYPROPANE, AD 6, AD 6 (SUSPENDING AGENT), DL-1,2-EPOXYPROPANE, DL-PROPYLENE OXIDE, EPIHYDRIN, EPOXYPROPANE, ETHYLENE OXIDE, METHYL-, METHYL ETHYLENE OXIDE, METHYL OXIRANE, METHYLOXACYCLOPROPANE, METHYLOXIRANE, NCI-C50099, OXIDO DE PROPILENO (DOT SPANISH), OXIRANE, METHYL-, OXYDE DE PROPYLÈNE (DOT FRENCH), OXYPROPYLENE, PROPANE, 1,2-EPOXY-, PROPANE, EPOXY, PROPENE OXIDE, PROPENEOXIDE, PROPYLENE EPOXIDE, PROPYLENEOXIDE, UN 1280 | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 58.08 | L | -112.13 | 34.23 | 538 | 25 | 0.8304 @ 20°C | 23000 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 73 | 290 | 870 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 170 | 690 | 2100 |
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*.
• TEEL-1 = AEGL-1
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values consistent with Rev. 29A*.
References
AEGLs (Table 5-1) and chemical information (Table 5-2) retrieved from: https://www.epa.gov/aegl/propylene-oxide-results-aegl-program