PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thallium nitrite | 13826-63-6 |
13.00
4.01
4.08
4.05
7.01
7.00
11.00
4.09
4.04
4.10
|
||||||||||
| Formula | Synonyms | |||||||||||
| Tl-N-O2 | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 250.38 | S | 5.7 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.074 | 4.1 | 25 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.0072 | 0.40 | 2.4 |
Technical Basis
A review of limited sources identified exposure limits (TLV-TWA, IDLH) for soluble thallium compounds. Data sources were selected according to the hierarchy listed in Table 3.1. The IDLH (1990) was selected as the TEEL-3 basis and the TLV-TWA as the TEEL-1 basis; a compound adjustment factor was applied to these exposure limits (Section 3.2.2). The TEEL-2 value was derived according to Table 3.5.
• TEEL-1 = MW-adjusted TLV-TWA (soluble thallium, CASRN: 7440-28-0, 0.2 mg/m3) x 3
• TEEL-2 = TEEL-3/6
• TEEL-3 = MW-adjusted IDLH (1990, soluble thallium, CASRN: 7440-28-0, 20 mg/m3)
This review generated TEEL-1 and TEEL-3 values consistent with Rev. 29A; minor difference in TEEL-2 values may be due to rounding.
• TEEL-1 = MW-adjusted TLV-TWA (soluble thallium, CASRN: 7440-28-0, 0.2 mg/m3) x 3
• TEEL-2 = TEEL-3/6
• TEEL-3 = MW-adjusted IDLH (1990, soluble thallium, CASRN: 7440-28-0, 20 mg/m3)
This review generated TEEL-1 and TEEL-3 values consistent with Rev. 29A; minor difference in TEEL-2 values may be due to rounding.
References
IDLH (1990) for soluble Thallium. Retrieved from: https://www.cdc.gov/niosh/idlh/thallium.html
TLV-TWA, 2009. Retrieved from: https://www.osha.gov/chemicaldata/521
https://pubchem.ncbi.nlm.nih.gov/compound/19753737
Description, thallium nitrate: https://pubchem.ncbi.nlm.nih.gov/compound/Thallium-nitrate.