Toxic substances list: hexachlorobutadiene (HCBD)
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
Sources
This substance is entering the environment from the following sources:
Risk management strategy
Click on the following link to view strategies and actions recommended to manage risks associated with the substance:
- Risk Management Strategy - Hexachlorobutadiene (HCBD)
Risk management tools
Tools developed to manage risks associated with the substance:
Consultation
Consultation (past and present) on the substance:
Other information
Contact
Chemicals Management Division
Environment and Climate Change Canada
Gatineau QC K1A 0H3
E-mail: interdiction-prohibition@ec.gc.ca
Substances Management Information Line:
Telephone: 1-800-567-1999 (in Canada) or 819-938-3232