PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lithium hydride | 7580-67-8 | 1414 |
18.00
14.01
4.01
11.01
14.02
4.08
4.05
7.01
8.00
7.00
|
|||||||||
| Formula | Synonyms | |||||||||||
| HLi | LITHIUM HYDRIDE, HIDRURO DE LITIO (DOT SPANISH), HYDRURE DE LITHIUM (DOT FRENCH), LITHIUM HYDRIDE(LIH), LITHIUM MONOHYDRIDE, LITHIUM HYDRIDE, FUSED SOLID, | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 7.95 | S | 692 | 0.78 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.025 | 0.10 | 3.0 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.077 | 0.31 | 9.2 |
Technical Basis
A review of available sources identified exposure limits for lithium hydride (ERPGs, IDLH, TLV-C, TWAs). Data sources were selected according to the hierarchy listed in Table 3.1. The ERPGs were selected as TEELs.
• TEEL-1 = ERPG-1 (2022)
• TEEL-2 = ERPG-2 (2022)
• TEEL-3 = ERPG-3 (2022)
This review generated TEEL-2 and TEEL-1 values consistent with Rev. 29A. The Rev.29A and current source, an ERPG-3, are consistent; the difference in values is due to an update to the published EPRG-3 value in 2022.
• TEEL-1 = ERPG-1 (2022)
• TEEL-2 = ERPG-2 (2022)
• TEEL-3 = ERPG-3 (2022)
This review generated TEEL-2 and TEEL-1 values consistent with Rev. 29A. The Rev.29A and current source, an ERPG-3, are consistent; the difference in values is due to an update to the published EPRG-3 value in 2022.
References
https://www.osha.gov/chemicaldata/598
https://cameochemicals.noaa.gov/chemical/996