PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cerium | 7440-45-1 | 3078 |
15.01
11.01
4.08
8.00
7.00
11.00
3.08
7.10
4.11
3.11
|
|||||||||
| Formula | Synonyms | |||||||||||
| Ce | CERIUM, SLABS, INGOTS OR RODS, CERIUM, TURNINGS OR GRITTY POWDER, CERIO, TORNEADURAS O POLVO GRANULADO (DOT SPANISH), CÉRIUM, COPEAUX OU POUDRE ABRASIVE (DOT FRENCH) | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 140.13 | S | 799 | 3433 | 6.9 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 30 | 330 | 2000 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 5.2 | 58 | 350 |
Technical Basis
A review of available sources did not identify exposure limits, acute toxicity data, or health hazard statements for cerium. The PNOS TLV-TWA was selected as the TEEL-1 basis (PNOS, Section 3.5.2). TEEL-3 and TEEL-2 values were derived according to Table 3.5.
• PAC-1 = TEEL-1 = TLV-TWA (PNOS, 10mg/m3) x 3
• PAC-2 = TEEL-2 = TEEL-1 x 11
• PAC-3 = TEEL-3 = TEEL-2 x 6
This review generated PAC values consistent with Rev. 29A*.
• PAC-1 = TEEL-1 = TLV-TWA (PNOS, 10mg/m3) x 3
• PAC-2 = TEEL-2 = TEEL-1 x 11
• PAC-3 = TEEL-3 = TEEL-2 x 6
This review generated PAC values consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Cerium