PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lithium hydroxide monohydrate | 1310-66-3 | 2680 |
11.01
11.00
14.01
14.02
4.07
7.01
4.08
4.09
|
|||||||||
| Formula | Synonyms | |||||||||||
| Li.OH.H2O | LITHIUM HYDROXIDE, MONOHYDRATE, HIDRÓXIDO DE LITIO, MONOHIDRATADO (DOT SPANISH), HIDRÓXIDO DE LITIO, SÓLIDO (DOT SPANISH), HYDROXYDE DE LITHIUM, MONOHYDRATÉ (DOT FRENCH), HYDROXYDE DE LITHIUM, SOLIDE (DOT FRENCH), LITHIUM HYDROXIDE HYDRATE, LITHIUM HYDROXIDE, SOLID | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 41.97 | S | 1.51 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.16 | 1.8 | 74 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.093 | 1.0 | 43 |
Technical Basis
A review of available sources did not identify exposure limits or acute toxicity data for lithium hydroxide monohydrate. Instead, available data for lithium hydroxide (CASRN: 1310-65-2) was evaluated as TEEL bases; data sources were selected according to the hierarchy listed in Table 3.1. For lithium hydroxide, available lithium hydroxide sources, the WEEL-C and rat 4-hr LC50 were selected as TEEL-2 and TEEL-3 bases, respectively. The LC50 was evaluated using factors in Tables 3.2, 3.3, and 3.4, scaled to a 60-minute equivalent using the ten Berge equation (Section 3.3.4), and molecular weight adjusted (Section 3.4.3.2). A molecular weight adjustment was also applied to the WEEL-C. The TEEL-1 was calculated according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = MW-adjusted WEEL-C (lithium hydroxide, CASRN: 1310-65-2, 1 mg/m3)
• TEEL-3 = MW-adjusted rat LC50 (lithium hydroxide, CASRN: 1310-65-2, 960 mg/m3/4H)
This review generated TEEL values consistent with Rev. 29A.
• TEEL-1 = TEEL-2/11
• TEEL-2 = MW-adjusted WEEL-C (lithium hydroxide, CASRN: 1310-65-2, 1 mg/m3)
• TEEL-3 = MW-adjusted rat LC50 (lithium hydroxide, CASRN: 1310-65-2, 960 mg/m3/4H)
This review generated TEEL values consistent with Rev. 29A.
References
https://pubchem.ncbi.nlm.nih.gov/compound/Lithium-hydroxide-monohydrate
WEEL-C, lithium hydroxide: https://tera.org/OARS/
Rat 4-hr LC50 for lithium hydroxide. Fundamental and Applied Toxicology., 7(58), 1986. Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/Lithium-Hydroxide