PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Erbium(III) nitrate | 10168-80-6 |
4.00
3.00
|
||||||||||
| Formula | Synonyms | |||||||||||
| ErN3O9 | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 353.29 | S |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.074 | 0.81 | 4.9 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 1.1 | 12 | 71 |
Technical Basis
Analysts used toxicity data for erbium(III) nitrate. Intraperitoneal LD50 data is preferred over intravenous LD50 data.
TEEL-1 = TEEL-2/11
TEEL-2 = TEEL-3/6
TEEL-3: LD50, Rat, intraperitoneal, Dose = 177 mg/kg
Both analysts converged with the values presented in Rev 29A and did not result in a change. Minor differences in value can be attributed to rounding.
TEELs were rounded to two significant figures and converted from referenced units to either ppm or mg/m3, providing both values.
TEEL-1 = TEEL-2/11
TEEL-2 = TEEL-3/6
TEEL-3: LD50, Rat, intraperitoneal, Dose = 177 mg/kg
Both analysts converged with the values presented in Rev 29A and did not result in a change. Minor differences in value can be attributed to rounding.
TEELs were rounded to two significant figures and converted from referenced units to either ppm or mg/m3, providing both values.
References
Temporary Emergency Exposure Limits for Chemicals: Methods and Practice (DOE-HDBK-1046-2016)
https://chem.nlm.nih.gov/chemidplus/rn/10168-80-6
https://pubchem.ncbi.nlm.nih.gov/compound/159265#section=Adverse-Effects
https://www.osha.gov/annotated-pels/table-z-1