Perfluorohexene (C6F12)
Perfluorohexene used in fluorocarbon plasma deposition for optical coatings. Meets HTS 2903.59.90.00 as longer-chain unsaturated fluorinated acyclic hydrocarbon. Chapter 29 note (e) allows transport solvents.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If hydrofluorohexenes with partial fluorination
Substitution pattern determines specific subheading placement.
If optical brightening derivatives
Specific end-use applications excluded from Chapter 29 by note (g).
If optical coating formulations
Preparations for optical element production classified with filters.
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Import Tips & Compliance
• Provide vapor pressure curves confirming supercritical fluid properties
• Use PFA-lined cylinders for long-chain fluorocarbon compatibility
• Include optical index of refraction specifications (1.34-1.38 range)
Related Products under HTS 2903.59.90.00
Perfluorobutene (C4F8)
Perfluorobutene is an unsaturated fluorinated acyclic hydrocarbon used primarily in plasma etching processes for semiconductor manufacturing. It falls under HTS 2903.59.90.00 as a halogenated derivative of hydrocarbons, specifically an unsaturated fluorinated derivative of acyclic hydrocarbons, not elsewhere specified. This chemically defined organic compound meets Chapter 29 note (a) for separate compounds.
Perfluoro-1-butene
Perfluoro-1-butene is a fully fluorinated C4 alkene used in chemical synthesis and as a reactive intermediate for fluoropolymer production. Classified under HTS 2903.59.90.00 as an 'other' unsaturated fluorinated derivative of acyclic hydrocarbons per Chapter 29 scope. Its complete fluorination distinguishes it from partially halogenated hydrocarbons.
1H-Pentafluoropropene (HFO-1234yf)
HFO-1234yf is a low-GWP hydrofluoroolefin refrigerant used in automotive air conditioning systems as a replacement for HFC-134a. It qualifies under HTS 2903.59.90.00 as an unsaturated fluorinated derivative of acyclic hydrocarbons with hydrogen substitution. Meets Chapter 29 definition for halogenated organic compounds.
Perfluoropentene (C5F10)
Perfluoropentene serves as a specialty gas for plasma cleaning and etching in microelectronics fabrication. Falls under HTS 2903.59.90.00 as an unsaturated fluorinated acyclic hydrocarbon per Chapter 29 note (a). Its complete perfluorination excludes it from partially halogenated hydrocarbon classifications.
Trifluoroethylene (HFC=CF2)
Trifluoroethylene is a fluorinated monomer used in copolymer production for specialty elastomers and electronic materials. Classified under HTS 2903.59.90.00 as an unsaturated fluorinated acyclic hydrocarbon derivative. Chapter 29 note (a) applies to this separate chemically defined compound.
Pentafluoropropene (C3F6)
Pentafluoropropene functions as an etching gas in semiconductor manufacturing and as a reactive intermediate. It meets HTS 2903.59.90.00 criteria as an 'other' unsaturated fluorinated acyclic hydrocarbon. Excluded from colorants, enzymes, or fuels per Chapter 29 exclusion notes.