Other
Ethers, ether-alcohols, ether-phenols, ether-alcohol- phenols, alcohol peroxides, ether peroxides, acetal and hemiacetal peroxides, ketone peroxides (whether or not chemically defined), and their halogenated, sulfonated, nitrated or nitrosated derivatives > Alcohol peroxides, ether peroxides, acetal and hemiacetal peroxides, ketone peroxides and their halogenated, sulfonated, nitrated or nitrosated derivatives: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2909.60.50.00
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.
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).
Benzoyl Peroxide Paste
Benzoyl peroxide paste (33% active) functions as a flour bleach, rubber accelerator, and acne treatment active. HTS 2909.60.5000 classifies it as a diacyl peroxide with water/dispersant per Chapter 29 note (d) for aqueous solutions.
Di(4-tert-butylcyclohexyl)peroxydicarbonate
This perester serves as a low-temperature initiator for PVC suspension polymerization. Covered by HTS 2909.60.5000 as an organic peroxide per Chapter 29, distinguished from coordination compounds by note 5(C).
tert-Hexyl Peroxyneodecanoate
A perester initiator for high-solids acrylic resin production at moderate temperatures. HTS 2909.60.5000 applies as chemically defined organic peroxide meeting Chapter 29 isomer and derivative provisions.
3,6,9-Triethyl-3,6,9-trimethyl-1,4,7-triperoxonane
Methyl ethyl ketone cyclic trimer peroxide used in polyester resin curing. As a chemically defined ketone peroxide, it falls under HTS 2909.60.5000, with Chapter 29 notes confirming inclusion despite cyclic structure.
Bis(4-tert-butylperoxy isopropyl)benzene
Aromatic dialkyl peroxide for high-temperature rubber curing applications. HTS 2909.60.5000 covers this ether peroxide as per Chapter 29 organic compound definitions.
2,5-Di(tert-butylperoxy)-2,5-dimethyl-3-hexyne
Peroxide with acetylenic functionality for specialty elastomer crosslinking. Classified HTS 2909.60.5000 as ether peroxide taking precedence over alkyne function.
Di(2-tert-butylperoxyisopropyl)benzene
Perkadox 14 series peroxide for rubber and polyolefin crosslinking. HTS 2909.60.5000 as aromatic ether peroxide.
tert-Butyl Peroxy-2-ethylhexyl Carbonate
Liquid perester initiator with low freezing point for cold polymerization. HTS 2909.60.5000 ether peroxide classification.