Toxic substances list: Hexachlorobutadiene
Hexachlorobutadiene, or HCBD, has never been commercially produced in Canada. Formerly, the substance was imported into Canada for use as a solvent, but it is no longer imported. There are no natural sources of HCBD in the environment.
CAS (Chemical Abstracts Service) registry number: 87-68-3
For more information on this substance, please visit the Chemical Substances website.
Risk Assessment
- Priority Substances List Assessment Report
- Addition of Hexachlorobutadiene to the Virtual Elimination List
- CEPA 1999 Schedule 1 - List of Toxic Substances - This substance has been added to the List of Toxic Substances. It is entering or may enter the environment in a quantity or concentration or under conditions that: a) have or may have an immediate or long-term harmful effect on the environment or its biological diversity.
- Virtual elimination of the substance (Track 1) under the Toxic Substances Management Policy
Source(s)
This substance is entering the environment from the following source(s):
Risk Management Strategy
Click on the following link to view strategies and actions recommended to manage risks associated with the substance:
Risk Management Tool(s)
Tool(s) developed to manage risks associated with the substance:
Consultation
Consultation (past and present) on the substance:
- Environment Canada's Response to Comments resulting from the Canada Gazette, Part I publication of the proposed addition of hexachlorobutadiene (HCBD) to the Virtual Elimination List
- Proposed Regulations Respecting the Total, Partial and Conditional Prohibition of Certain Toxic Substances (archived consultation document)
Other Information
Contact
Substances Management Information Line
Chemicals Management Plan
Gatineau, QC K1A 0H3
Telephone: 1-800-567-1999 (in Canada) or 819-938-3232
Fax: 819-938-3231
E-mail: eccc.substances.eccc@canada.ca
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