Learn about 2 decene substances.

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About decenes

Decene is the name for a specific group of chemicals that share a common chemical structure. For the purposes of this overview, the following 2 substances make up the decenes group:

Products found in Canada that may contain both HTTD and hydrogenated didecene include:

Hydrogenated didecene may also be found in:

Safety of hydrogenated didecene and HTTD

Under Canada's Chemicals Management Plan, we review and manage the potential risks that chemical substances can pose to Canadians and the environment. The first stage of the review process is a draft chemical risk assessment.

We've completed the draft assessment of 2 decene substances, hydrogenated didecene and HTTD. We're proposing that these substances may pose a risk to your health.

Specifically, breathing in these substances when using cleaner, lubricant and preservation spray for firearm maintenance may cause damage to the nasal cavity or lungs.

 We're also proposing that:

What we're doing

Our assessment is not yet final. We're continuing to evaluate the potential risk posed by hydrogenated didecene and HTTD before we publish our final conclusion. This includes:

Currently, there are no restrictions on the use of hydrogenated didecene or HTTD in Canada.

If the proposed findings for these 2 substances are confirmed in the final assessment, we will consider:

What you can do

Consumers are reminded to:

If you're unsure if your product contains hydrogenated didecene and HTTD, contact the manufacturer.

If you're exposed to hydrogenated didecene and HTTD at work, talk to your employer and occupational health and safety (OHS) official about:

For more information

For industry and professionals

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