Chemical Substances
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Batch 10 - Call for Information
Why is the Government of Canada assessing these substances?
- Approximately 200 substances were identified through the Categorization process as high priorities for assessment under the "Challenge" component of the Chemicals Management Plan.
- There are 12 substances that have been assigned to Batch 10. These substances are industrial chemicals, which may be found in some consumer products. One substance, hydrazine, is also produced by a certain form of bacteria as a byproduct during nitrogen fixation (a chemical process where nitrogen in the atmosphere is converted into other forms of nitrogen that may be used by living organisms). Another substance, cobalt, is a metal that is found in the environment; however, the three forms of cobalt that are being assessed in Batch 10 are not naturally present in the environment.
- Five of these substances were identified as a potential concern for human health based on their classification by international organizations for potential or known harm. During Categorization, they were also identified as having a moderate potential for exposure to Canadians.
- The other seven substances were identified as a potential concern for the environment, based on the ecological Categorization criteria.
- The last extensive information gathering effort by the Government of Canada for these substances dates back to 1984-1986.
What is the Government of Canada doing?
- The "Challenge" involves collecting the new information and data required on the properties and uses of these substances from individuals and companies that manufacture, import or use the chemicals.
- This information and data will be used by the Government of Canada to conduct evaluations based on science, called screening assessments.
- The results of these screening assessments will help the Government of Canada decide if further actions may be necessary to protect the health of Canadians and their environment from any potential risks posed by these substances.
Substances in Batch 10 of the Challenge
| CAS Registry Number* | Substance DSL Name† |
Common Name (where available) |
|---|---|---|
|
* CAS Registry Number: Chemical Abstracts Service Registry Number. The Chemical Abstracts Service information is the property of the American Chemical Society and any use or redistribution, except as required in supporting regulatory requirements and/or for reports to the Government of Canada when the information and the reports are required by law or administrative policy, is not permitted without the prior, written permission of the American Chemical Society. † DSL: Domestic Substances List; an inventory of approximately 23 000 substances manufactured in, imported into or used in Canada on a commercial scale. It is based on substances present in Canada, under certain conditions, between January 1, 1984 and December 31, 1986. 1 This substance did not meet the categorization criteria specified under section 73 of the Canadian Environmental Protection Act, 1999, but was determined to be a priority for assessment from a health perspective. 2 CAS RN 10124-43-3 is used to identify cobalt (II) sulfate, with a 1:1 cobalt-to-sulfate ratio, while CAS RN 10393-49-4 is used to identify cobalt sulfate in which the specific cobalt ion was not identified, or the ratio between the acid and cobalt is unknown. Although CAS RN 10393-49-4 is not included in the Challenge, this second CAS RN for cobalt sulfate is being included in the call for information on Batch 10 substances. |
||
| 302-01-21 | Hydrazine | Hydrazine |
| 330-54-1 | Urea, N'-(3,4-dichlorophenyl)-N,N-dimethyl- | Diuron |
| 7440-48-4 | Cobalt | Elemental cobalt |
| 7646-79-9 | Cobalt chloride | Cobalt chloride |
| 10124-43-32 | Sulfuric acid, cobalt(2+) salt (1:1) | Cobalt sulfate |
| CAS Registry Number* | Substance DSL Name† |
Common Name (where available) |
|---|---|---|
|
* CAS Registry Number: Chemical Abstracts Service Registry Number. The Chemical Abstracts Service information is the property of the American Chemical Society and any use or redistribution, except as required in supporting regulatory requirements and/or for reports to the Government of Canada when the information and the reports are required by law or administrative policy, is not permitted without the prior, written permission of the American Chemical Society. † DSL: Domestic Substances List; an inventory of approximately 23 000 substances manufactured in, imported into or used in Canada on a commercial scale. It is based on substances present in Canada, under certain conditions, between January 1, 1984 and December 31, 1986. |
||
| 42739-61-7 | Nickel, bis[2,3-bis(hydroxyimino)-N-(2-methoxyphenyl)butanamidato]- | Nickel BHMB |
| 64365-17-9 | Resin acids and Rosin acids, hydrogenated, esters with pentaerythritol | HRPE |
| 65997-06-0 | Rosin, hydrogenated | Rosin, hydrogenated |
| 65997-13-9 | Resin acids and Rosin acids, hydrogenated, esters with glycerol | HRGE |
| 68648-53-3 | Resin acids and Rosin acids, hydrogenated, esters with triethylene glycol | HRTE |
| 85702-90-5 | 2,9,11,13-Tetraazanonadecanethioic acid, 19-isocyanato-11-(6-isocyanatohexyl)-10,12-dioxo-, S-[3-(trimethoxysilyl)propyl] ester | TIDTE |
| 124751-15-1 | Resin acids and Rosin acids, fumarated, barium salts | RFBS |
