Di-tert-butyl Peroxide
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If supplied as formulated reaction initiator mixture with diluents
Complex chemical mixtures for specific industrial use shift to Chapter 38 spent catalysts and reaction accelerators.
If for metal-coordination peroxide complexes
Chapter note 5(C)(3) directs coordination compounds to latest numerical heading based on organic fragments.
If imported as saturated acyclic ketone peroxide
Heading 2915 covers specific ketone and quinone peroxides before general 'other' peroxides in 2909.
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Import Tips & Compliance
• 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
Related Products under HTS 2909.60.50.00
Cumene Hydroperoxide
Cumene hydroperoxide serves as an intermediate in phenol and acetone production via the Hock process, functioning as an organic hydroperoxide. Classified under HTS 2909.60.5000 as an alcohol peroxide derivative within Chapter 29's organic compounds scope. Excluded from Chapter 28 as it's not an inorganic peroxide.
tert-Butyl Hydroperoxide
tert-Butyl hydroperoxide (TBHP) is an organic hydroperoxide used as an oxidant in epoxidation reactions and oxidation catalysis. It qualifies for HTS 2909.60.5000 as an alcohol peroxide, fitting Chapter 29's definition of chemically defined organic peroxides with necessary stabilizers for safe transport.
Dicumyl Peroxide
Dicumyl peroxide acts as a crosslinking agent in rubber and silicone elastomer vulcanization processes. Under HTS 2909.60.5000 as an ether peroxide, it's a separate chemically defined compound per Chapter 29 note (a), distinguished from polymer-bound forms.
Lauroyl Peroxide
Lauroyl peroxide functions as a polymerization initiator for acrylic resins and as a bleaching agent in flour milling. Classified in HTS 2909.60.5000 as a diacyl peroxide (ketone peroxide derivative), meeting Chapter 29 criteria for chemically defined organic compounds with transport stabilizers.
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane
This dialkyl peroxide serves as a high-temperature initiator for crosslinking polyethylene and silane-modified polymers. HTS 2909.60.5000 covers it as a chemically defined ether peroxide, with permitted anticaking stabilizers per Chapter 29 note (f).
Methyl Ethyl Ketone Peroxide (MEKP)
MEKP is the standard curing agent for unsaturated polyester resins in fiberglass composites and gelcoats. As a ketone peroxide solution, it falls under HTS 2909.60.5000 per Chapter 29 for organic peroxides dissolved in solvents for safe transport (note e).