1,1,1,3,3-Pentafluorobutane (HFC-365mfc) and 1,1,1,2,2,3,4,5,5,5-decafluoropentane (HFC-4310mee)
Halogenated derivatives of hydrocarbons: > Saturated fluorinated derivatives of acyclic hydrocarbons: > 1,1,1,3,3-Pentafluorobutane (HFC-365mfc) and 1,1,1,2,2,3,4,5,5,5-decafluoropentane (HFC-4310mee)
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
Products classified under HTS 2903.48.00.00
HFC-365mfc (1,1,1,3,3-Pentafluorobutane) Technical Grade
HFC-365mfc is a saturated fluorinated acyclic hydrocarbon used primarily as a blowing agent in polyurethane foam production and as a specialty solvent for precision cleaning. This chemically defined organic compound falls under HTS 2903.48.00.00 due to its specific halogenated structure as listed in the heading for saturated fluorinated derivatives. It is supplied in cylinders as a pure compound without additives that would change its classification.
HFC-43-10mee (1,1,1,2,2,3,4,5,5,5-Decafluoropentane) Electronic Grade
HFC-43-10mee is a high-purity saturated fluorinated hydrocarbon used in electronics manufacturing for precision cleaning of circuit boards and as a heat transfer fluid. Classified under HTS 2903.48.00.00 as one of the specifically named halogenated derivatives of acyclic hydrocarbons. This electronic grade version meets stringent purity standards for semiconductor applications.
HFC-365mfc Blowing Agent Cylinder
HFC-365mfc packaged in 50 lb steel cylinders specifically for use as a physical blowing agent in rigid polyurethane and polyisocyanurate foam production. This product is the pure, chemically defined compound listed explicitly in HTS 2903.48.00.00. Supplied with stabilizer only for transport safety as permitted by Chapter 29 notes.
HFC-43-10mee Precision Cleaning Solvent
High-purity HFC-43-10mee supplied for vapor degreasing and precision cleaning in aerospace and electronics industries. As a listed saturated fluorinated derivative under HTS 2903.48.00.00, it remains classified as the pure chemical compound. Non-ozone depleting alternative to traditional solvents.
Vertrel LFE (HFC-43-10mee Base) Pure Compound
Vertrel LFE designation refers to the pure HFC-43-10mee compound before azeotrope formation, used as a base solvent in electronics cleaning. Classifies under HTS 2903.48.00.00 as the specifically named decafluoropentane. Distinguished from formulated azeotropes by absence of co-solvents.
HFC-365mfc with Transport Stabilizer
HFC-365mfc containing minimal nitrile stabilizer (<0.1%) added solely for transport stability as permitted by Chapter 29 note (f). Used in foam blowing applications. Remains classified under HTS 2903.48.00.00 as the stabilizer does not change the product's general use character.
HFC-43-10mee Heat Transfer Fluid Grade
HFC-43-10mee specifically purified for use as dielectric heat transfer fluid in electronics cooling applications. As a named compound in HTS 2903.48.00.00, classification remains with the pure chemical despite end use. High dielectric strength and thermal stability.