PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Germane; (Germanium tetrahydride) | 7782-65-2 | 2192 |
18.00
15.01
11.01
15.02
4.05
7.01
7.00
4.09
4.06
4.10
|
|||||||||
| Formula | Synonyms | |||||||||||
| Ge.H4 | GERMANE, GERMANE (DOT FRENCH), GERMANIO (DOT SPANISH), GERMANIUM HYDRIDE, GERMANIUM HYDRIDE (GEH4), GERMANIUM TETRAHYDRIDE, GERMANIUM(4+) HYDRIDE, GERMANOMETHANE, MONOGERMANE, TETRAHYDROGERMANE | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 76.63 | G | -165 | -90 | 1.523 @ -142°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.015 | 0.17 | 0.50 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.047 | 0.53 | 1.6 |
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 TEELs 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 ppm values that are consistent with Rev. 29A. Minor differences in the reported TEEL-1 and TEEL-2 values in units of mg/m3 may be due to rounding.
• TEEL-1 = TEEL-2/11
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL ppm values that are consistent with Rev. 29A. Minor differences in the reported TEEL-1 and TEEL-2 values in units of mg/m3 may be due to rounding.
References
https://www.epa.gov/aegl/germane-results-aegl-program