New

Ask Wove anything about tariffs.

Try Tariff Assistant

Di-tert-butyl Peroxide from Canada

Di-tert-butyl peroxide is a dialkyl peroxide used primarily as an initiator in free-radical polymerization reactions for producing plastics and elastomers. It falls under HTS 2909.60.5000 as an ether peroxide, chemically defined organic compound within Chapter 29 scope for separate organic peroxides. This classification covers its use in industrial polymer synthesis rather than as a fuel or coloring agent excluded by chapter notes.

Duty Rate — Canada → United States

13.7%

Rate breakdown

9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter

Import Tips

• Provide Safety Data Sheets (SDS) and UN certification for hazardous peroxide classification during customs clearance

• Ensure proper stabilization documentation to confirm it meets Chapter 29 note (f) for transport additives

• Avoid misclassification as Chapter 36 explosive by emphasizing chemical initiator function over pyrotechnic use