Thallium and its compounds

Information sheet

Thallium and its compounds

These substances were identified for action under the Chemicals Management Plan (CMP). This screening assessment focuses 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 in 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.

Summary of publications
Timelines

Summary of publications
Substance group	CAS RN	Common name	DSL or R-ICL name	Draft screening assessment	Risk management scope	Proposed conclusion on section 64 criteria	Follow-up activities
Thallium and its compounds	7440-28-0^{Table 1 footnote a}	Thallium	Thallium	HTML	HTML	Meets one or more of the criteria	Refer to risk management scope
	563-68-8	Thallium(I) acetate	Acetic acid, thallium(1++) salt
	7791-12-0	Thallium chloride	Thallium chloride
	10031-59-1^{Table 1 footnote b}	Thallium(I) sulfate	Sulfuric acid, thallium(1+) salt (1:?)
	55172-29-7^{Table 1 footnote b}	²⁰¹TlCl	Thallium chloride (²⁰¹TlCl)
Table 1 footnote a This substance was not identified under subsection 73(1) of the Canadian Environmental Protection Act, 1999 (CEPA 1999) but was included in this assessment as it is highly reactive when exposed to moisture in air and releases thallium ions under environmental conditions. Return to Table 1 footnote a referrer Table 1 footnote b This substance was not identified under subsection 73(1) of CEPA 1999 but was included in this assessment as it was identified for further consideration following prioritization of the Revised In Commerce List (R-ICL). Return to first Table 1 footnote b referrer

Timelines
Date	Activity
September 2021	Anticipated publication of the final screening assessment and proposed risk management approach.
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.

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Date modified:: 2020-09-18

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Thallium and its compounds

Information sheet

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