PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lanthanum chloride | 10099-58-8 |
5.00
11.01
8.00
4.10
3.08
10.00
3.02
7.11
15.01
15.02
|
||||||||||
| Formula | Synonyms | |||||||||||
| La.Cl3 | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 245.26 | S deliq | 1000 | 3.84 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 13 | 140 | 830 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 1.3 | 14 | 83 |
Technical Basis
A review of available sources identified LD50 (guinea pig, mouse, rat) acute toxicity data for intraperitoneal, oral, and subcutaneous routes. Data sources were selected according to the hierarchy listed in Table 3.1. Toxicity data were selected according to type of exposure, species, and route according to the hierarchies stated in Sections 3.3.1, 3.3.2, and evaluated using factors in Tables 3.2, 3.3, and 3.4. The most preferred species and route, a rat oral LD50, was selected as the TEEL-3 basis. TEEL-2 and TEEL-1 values were derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat oral LD50 (4184 mg/kg)
This review generated TEEL values that are less conservative than those in Rev. 29A. The Rev. 29A TEEL-3 basis, a rat oral LD50 resulting in a TEEL-3 = 470 mg/m3, was not found during the current review. The Rev. 29A and current TEEL-2 and /TEEL-1 methodology are consistent, with differences in value due to the TEEL-3 basis change.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat oral LD50 (4184 mg/kg)
This review generated TEEL values that are less conservative than those in Rev. 29A. The Rev. 29A TEEL-3 basis, a rat oral LD50 resulting in a TEEL-3 = 470 mg/m3, was not found during the current review. The Rev. 29A and current TEEL-2 and /TEEL-1 methodology are consistent, with differences in value due to the TEEL-3 basis change.
References
Rat oral LD50: Environmental Quality and Safety, Supplement., 1(1), 1975 via PubChem; National Center for Biotechnology Information (2024). PubChem Compound Summary for CID 64735, Lanthanum chloride. Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/Lanthanum-chloride.