1-Propene, 3-chloro- (3-Chloropropene)

CAS Registry Number 107-05-1

What is it?

  • 1-Propene, 3-chloro-, also known as 3-chloropropene, is an industrial chemical.

How is it used?

  • Internationally, 3-chloropropene is employed primarily in the production of epichlorohydrin, glycerine and quaternary ammonium compounds for the manufacture of resins and polymers.
  • 3-Chloropropene can also be used in the manufacture of a variety of miscellaneous products, including allyl compounds, cross-linking substances (chemicals used to make polymers), pharmaceutical agents, agricultural chemicals, plasticizers, fragrances and flavour chemicals.
  • Acrylic polymers manufactured by using 3-chloropropene may be used as formulants in some personal care products in which 3-chloropropene may be present at very low (trace) levels as residues (leftover from the manufacturing process).
  • 3-Chloropropene is not currently manufactured in Canada, but may be imported into Canada as a residual in some products.

Why is the Government of Canada assessing it?

  • Prior to the assessment, 3-chloropropene was identified as a potential concern to human health based on its classification by international organizations as a substance that may cause cancer in laboratory animals and may cause genetic effects, and based on a moderate potential for exposure to Canadians.

How are Canadians exposed to it?

  • Exposure of the general population of Canada to 3-chloropropene is expected to be low and to occur predominantly via inhalation of ambient and indoor air and the use of personal care products containing 3-chloropropene as a residual.

What are the results of the assessment?

  • The Government of Canada has conducted a science-based evaluation of 3-chloropropene, called a screening assessment.
  • The Government of Canada has concluded that 3-chloropropene is not harmful to human health at current levels of exposure.
  • The Government of Canada has also concluded that 3-chloropropene is not entering the environment in a quantity or under conditions that constitute a danger to the environment.

What is the Government of Canada doing?

  • Although exposure of the general population of Canada is low, the Government is taking action so that exposure remains low.
  • The Government of Canada is proposing to implement a Significant New Activity or SNAc provision for 3-chloropropene. This would require that any proposed new manufacture, import or use of 3-chloropropene would be subject to further assessment before this new activity would be allowed.
  • The final screening assessment report was published on November 28, 2009.

What can Canadians do?

  • The health risks associated with a chemical depend on the hazard (its potential to cause health effects) and the dose (the amount of chemical to which you are exposed).
  • Because exposure to 3-chloropropene among the general population is low, the Government of Canada is not currently recommending specific actions by Canadians to reduce their exposure.
  • As a general precaution, Canadians who handle 3-chloropropene in an industrial or manufacturing setting are reminded to carefully follow safety warnings and directions when using products containing 3-chloropropene.
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