Thallium and its compounds
Information sheet
These substances were identified for action under the Chemicals Management Plan (CMP). The assessment focused on the thallium moiety and therefore considers all thallium-containing substances that may release thallium, as well as thallium in its elemental form and thallium released to the environment in dissolved, solid or particulate forms. This includes 5 thallium-containing substances identified as priorities for assessment, which are listed in the table below.
| Substance group | CAS RN | Common name | DSL or R-ICL name | Public comments on the draft screening assessment | Final assessment | Proposed risk management approach | Conclusion on section 64 criteria | Follow-up activities |
|---|---|---|---|---|---|---|---|---|
| Thallium and its compounds | 7440-28-0 | Thallium | Thallium | HTML | HTML | HTML | Meets one or more of the criteria | Refer to proposed risk management approach |
| 563-68-8 | Thallium(I) acetate | Acetic acid, thallium(1+) salt | ||||||
| 7791-12-0 | Thallium chloride | Thallium chloride | ||||||
| 10031-59-1 Table 1 Footnote a | Thallium(I) sulfate | Sulfuric acid, thallium(1+) salt (1:?) | ||||||
| 55172-29-7 Table 1 Footnote b | 201TlCl | Thallium chloride (201TlCl) | ||||||
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| Date | Activity |
|---|---|
| March 30, 2024 | Publication of the final assessment. The proposed risk management approach was also published for a 60-day public comment period. The related notice was published in the Canada Gazette, Part I: Vol. 158, No. 13 . |
| September 19, 2020 | Publication and start of 60-day public comment period on the draft screening assessment and risk management scope. The related notice was published in the Canada Gazette, Part I: Vol. 154, No. 38. |