Toxic substances list: four fluorotelomer-based substances assessed under the New Substances Program
Related information
Fluorotelomer-based substances are industrial chemicals that belong to the broad class of per- and polyfluoroalkyl substances (PFAS). PFAS are a class of over 4,700 human-made substances. In April 2021, the Government of Canada indicated that it is considering activities that would address PFAS as a class. Visit the PFAS web page for the latest information on publications and actions taken under the Government's Chemicals Management Plan related to PFAS.
The four fluorotelomer-based substances added to the List of Toxic Substances and their associated Chemical Abstracts Service Registry Numbers (CAS RN)i are:
- Hexane, 1,6-diisocyanato-, homopolymer, reaction products with alpha-fluoro-omega-2-hydroxyethyl-poly(difluoro- methylene), C16-20-branched alcohols and 1-octadecanol (CAS RN 1246542-93-7)
- 2-propenoic acid, 2-methyl-, hexadecyl ester, polymers with 2-hydroxyethyl methacrylate, gamma-omega-perfluoro-C10-16-alkyl acrylate and stearyl methacrylate (CAS RN 203743-03-7)
- 2-propenoic acid, 2-methyl-, 2-methylpropyl ester, polymer with butyl 2-propenoateand 2,5 furandione, gamma-omega-perfluoro-C8-14-alkyl esters, tert-Bu benzenecarboperoxoate-initiated (CAS RN 459415-06-6)
- 2-propen-1-ol, reaction products with pentafluoroiodoethane tetrafluoroethylene telomer,dehydroiodinated, reaction products with epichlorohydrin and triethylenetetramine (CAS RN 464178-90-3)
The four fluorotelomer-based substances are polymers that contain perfluorinated alkyl moieties (contain carbon atoms that are completely saturated by fluorine) through the application of fluorotelomer chemistry. It is the strength of the carbon-fluorine bonds that contributes to the extreme stability and unique properties of these fluorinated chemicals.
Fluorotelomer-based substances have water, oil, dirt and grease repellent properties and can be found in surface treatments for fabric, leather, rugs and carpets, as well as stone and tile; in sizing agents (to resist the spreading and penetration of liquids) for packaging and paper products; and in levelling agents (to provide an even surface) for coatings.
For more information on LC-PFCAs precursors like the four fluorotelomer-based substances, please visit the Management of toxic substances web page on LC-PFCAs, their salts and precursors.
Risk assessment
- CEPA Schedule 1 - List of Toxic Substances - These substances have been added to the List of Toxic Substances (items 92, 93, 94 and 95). They are entering or may enter the environment in a quantity or concentration or under conditions that have or may have an immediate or long-term harmful effect on the environment or its biological diversity and constitute or may constitute a danger in Canada to human life or health.
- Availability of Assessment Reports for Four (4) Fluorotelomer-based Substances Currently Prohibited Under the New Substances Program
- Final Order Adding Four New Fluorotelomer-based Substances to Schedule 1 of the Canadian Environmental Protection Act, 1999 (PDF 1.96MB, page 148) (October 2010)
Risk management strategy
Strategies and actions recommended to manage risks associated with these substances:
Risk management tools
Tools developed to manage risks associated with these substances:
- Prohibition of Certain Toxic Substances Regulations, 2022 [proposed] (May 2022)
- Proposed Order Amending Schedule 3 to the Canadian Environmental Protection Act, 1999 (Export Control List) (May 2022)
- Prohibition of Certain Toxic Substances Regulations, 2012
- Regulations Amending the Prohibition of Certain Toxic Substances Regulations, 2005 (Four New Fluorotelomer-based Substances) [repealed] (September 2010)
- Perfluorinated Carboxylic Acids (PFCAs) and Precursors: An Action Plan for Assessment and Management (PDF 119 kB) (June 2006)
- Ministerial Prohibition under Subsection 84(5) of CEPA published on February 5, 2005 (PDF 1 MB, page 4) (February 2005)
- Ministerial Prohibitions under Subsection 84(5) of CEPA published on July 17, 2004 (PDF 1.2 MB, page 9) (July 2004)
International engagement
For information on Canada's international engagement on these substances, please visit:
Consultations
Consultations (past and present) on these substances:
- Proposed Prohibition of Certain Toxic Substances Regulations, 2022 (May 2022)
- Proposed Order Amending Schedule 3 to the Canadian Environmental Protection Act, 1999 (May 2022)
- Consultation document on proposed amendments to Schedule 3 (Export Control List) to the Canadian Environmental Protection Act, 1999 (March 2020)
- Consultation document on proposed amendments to the Prohibition of Certain Toxic Substances Regulations, 2012 for PFOS, PFOA, LC-PFCAs, HBCD, PBDEs, DP and DBDPE (December 2018)
- Notice of intent to amend the Prohibition of Certain Toxic Substances Regulations, 2012 published in the Canada Gazette, Part I (October 2018)
- Reply to comments received in submissions on the proposed Regulations Amending the Prohibition of Certain Toxic Substances Regulations, 2005 (Four New Fluorotelomer-based Substances) (November 2009)
- Perfluorinated carboxylic acids (PFCAs) and precursors: an action plan for assessment and management - summary of and response to comments (PDF 88 kB) (November 2006)
- Proposed Regulations Amending the Prohibition of Certain Toxic Substances Regulations, 2005 (Four New Fluorotelomer-based Substances) (PDF 1.95 MB, page 57) (June 2006)
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
Fax: 819-938-3231
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