PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thallous malonate | 2757-18-8 |
15.01
11.01
15.02
4.08
4.05
7.01
7.00
4.09
4.06
4.10
|
||||||||||
| Formula | Synonyms | |||||||||||
| 2Tl.C3H2O4 | THALLOUS MALONATE, DITHALLIUM MALONATE, FORMOMALENIC THALLIUM, MALONIC ACID, THALLIUM SALT (1:2), MALONIC ACID, THALLIUM SALT(1:2), PROPANEDIOIC ACID, DITHALLIUM SALT, THALLIUM MALONATE | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 510.79 | S |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.18 | 2.0 | 25 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.0086 | 0.096 | 1.2 |
Technical Basis
A review of available sources identified a LOC and IDLH (1990) for soluble thallium (CASRN: 7440-28-0). Data sources were selected according to the hierarchy listed in Table 3.1 The IDLH (1990) was selected as the TEEL-3 basis and a compound adjustment factor was applied (Section 3.2.2). The LOC was selected as the TEEL-2. The TEEL-1 value was derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = LOC
• TEEL-3 = MW-adjusted IDLH (1990, thallium (soluble compounds), CASRN: 7440-28-0, 20 mg/m3)
This review generated TEEL values that are consistent with Rev. 29A*.
• TEEL-1 = TEEL-2/11
• TEEL-2 = LOC
• TEEL-3 = MW-adjusted IDLH (1990, thallium (soluble compounds), CASRN: 7440-28-0, 20 mg/m3)
This review generated TEEL values that are consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Dithallium-malonate.
IDLH (1990) for soluble thallium (CASRN: 7440-28-0): https://www.cdc.gov/niosh/idlh/thallium.html
LOC: Retrieved from Exhibit C-1 (page C-9) of the EPA’s Technical Guidance for Hazards Analysis: https://www.epa.gov/sites/default/files/2015-09/documents/technical_guidance_for_hazard_analysis.pdf