PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nitrogen tetroxide | 10544-72-6 | 1067 |
14.01
11.01
14.02
4.08
4.05
7.01
8.00
11.00
4.07
3.08
|
|||||||||
| Formula | Synonyms | |||||||||||
| N2O4 | NITROGEN TETROXIDE, LIQUID, DINITROGEN TETRAOXIDE, DINITROGEN TETROXIDE, NITROGEN DIOXIDE, NITROGEN PEROXIDE, NITROGEN TETRAOXIDE, NITROGEN TETROXIDE, OXIDES OF NITROGEN, RED OXIDE OF NITROGEN, TETRÓXIDO DE DINITRÓGENO, LICUADO (DOT SPANISH), TETRÓXIDO DE NITRÓGENO, LÍQUIDO (DOT SPANISH), TÉTROXYDE D^AZOTE, LIQUIDE (DOT FRENCH) | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 92.02 | G | -11.2 | 21.15 | 1.493 @ 20°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.25 | 6.2 | 10 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.94 | 23 | 38 |
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 4-2) and chemical information (Table 4-4) retrieved from: https://www.epa.gov/aegl/nitrogen-tetroxide-aegl-program