PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Uranyl nitrate (solid); (Bis(nitrato-O,O')dioxouranium) | 10102-06-4 |
18.00
14.01
4.01
11.01
14.02
4.08
11.00
4.09
4.10
4.07
|
||||||||||
| Formula | Synonyms | |||||||||||
| N2.O8.U | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 394.02 | S | 60.2 | 118 | 2.81 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.99 | 5.5 | 33 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.061 | 0.34 | 2.0 |
Technical Basis
exposure limits soluble uranium (CASRN: 7440-61-1), including a TLV-STEL and an IDLH. Data sources were selected according to the hierarchy listed in Table 3.1. The IDLH was selected as the TEEL-3 basis. The TEEL-2 was derived according to Table 3.5. The TLV-STEL was selected as the TEEL-1. The TEEL-3 and TEEL-1 values were adjusted with a compound adjustment factor (Section 3.2.2).
• TEEL-1 = MW-adjusted TLV-STEL (soluble uranium, CASRN: 7440-61-1, 0.6 mg/m3)
• TEEL-2 = TEEL-3/6
• TEEL-3 = MW- adjusted IDLH (1990, soluble uranium, CASRN: 7440-61, 20 mg/m3)
This review generated TEEL values that are consistent with Rev. 29A.
• TEEL-1 = MW-adjusted TLV-STEL (soluble uranium, CASRN: 7440-61-1, 0.6 mg/m3)
• TEEL-2 = TEEL-3/6
• TEEL-3 = MW- adjusted IDLH (1990, soluble uranium, CASRN: 7440-61, 20 mg/m3)
This review generated TEEL values that are consistent with Rev. 29A.
References
Uranium IDLH: https://www.cdc.gov/niosh/idlh/uranium.html
Uranium TLV-STEL: https://www.osha.gov/chemicaldata/545
Uranyl nitrate acute toxicity data retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/24933
https://www.acs.org/molecule-of-the-week/archive/u/uranyl-nitrate.html