1,1,1,2,3,3,3-Heptafluoropropane (HFC-227ea),1,1,1,2,2,3-hexafluoropropane (HFC-236cb),1,1,1,2,3,3-hexafluoropropane (HFC-236ea) and 1,1,1,3,3,3-hexafluoropropane (HFC-236fa)
Halogenated derivatives of hydrocarbons: > Saturated fluorinated derivatives of acyclic hydrocarbons: > 1,1,1,2,3,3,3-Heptafluoropropane (HFC-227ea),1,1,1,2,2,3-hexafluoropropane (HFC-236cb),1,1,1,2,3,3-hexafluoropropane (HFC-236ea) and 1,1,1,3,3,3-hexafluoropropane (HFC-236fa)
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 2903.46.10.00
HFC-227ea Fire Extinguishing Agent
Pure 1,1,1,2,3,3,3-Heptafluoropropane (HFC-227ea) used as a clean fire suppressant in total flooding fire suppression systems for data centers and electronics. This saturated fluorinated acyclic hydrocarbon falls under HTS 2903.46.10.00 as a specifically named halogenated derivative. It leaves no residue, making it ideal for sensitive environments.
HFC-236fa Refrigerant Gas
1,1,1,3,3,3-Hexafluoropropane (HFC-236fa) supplied in high-pressure cylinders for use as a specialty refrigerant in military cooling systems and centrifugal chillers. Classified under HTS 2903.46.10.00 as a named saturated fluorinated hydrocarbon derivative. Known for its zero ozone depletion potential.
HFC-227ea Medical Propellant
Pharmaceutical grade HFC-227ea (1,1,1,2,3,3,3-Heptafluoropropane) used as a non-flammable propellant in metered dose inhalers for asthma medications. This pure chemical compound is specifically listed under HTS 2903.46.10.00. Meets USP/NF standards for inhalation drug delivery.
HFC-236ea Electronic Cleaning Solvent
1,1,1,2,3,3-Hexafluoropropane (HFC-236ea) used as a precision cleaning solvent for removing flux residues from electronic circuit boards. Falls under HTS 2903.46.10.00 as a named halogenated hydrocarbon. High dielectric strength and fast evaporation rate.
HFC-236cb Foam Blowing Agent
1,1,1,2,2,3-Hexafluoropropane (HFC-236cb) used as a zero ODP blowing agent in polyurethane spray foam insulation for building applications. Specifically enumerated under HTS 2903.46.10.00 as a saturated fluorinated derivative. Provides superior thermal insulation properties.
HFC-236fa Specialty Heat Transfer Fluid
High purity HFC-236fa (1,1,1,3,3,3-hexafluoropropane) used in liquid immersion cooling systems for high-performance computing and data centers. Classified under HTS 2903.46.10.00 per chapter notes for pure halogenated hydrocarbons. Excellent thermal stability up to 250°C.
HFC-227ea Calibration Gas Standard
Certified reference HFC-227ea gas mixtures at ppb/ppm levels in nitrogen balance for atmospheric monitoring and gas chromatography calibration. Pure component classified under HTS 2903.46.10.00 with trace analysis certificate. NIST-traceable concentration verification.
HFC-236ea Precision Vapor Degreaser
HFC-236ea (1,1,1,2,3,3-hexafluoropropane) for vapor degreasing of aerospace components and optical lenses. Specifically listed under HTS 2903.46.10.00 as pure chemical compound. Non-flammable with K_B value >100 for organic residue removal.
HFC-227ea Dielectric Test Gas
HFC-227ea used for high-voltage dielectric strength testing of electrical switchgear and transformers. Pure compound under HTS 2903.46.10.00 with >45 kV/cm breakdown voltage. Non-corrosive to copper and aluminum contacts.
HFC-236fa Immersion Cooling Fluid
Single-phase immersion cooling fluid HFC-236fa for server farm liquid cooling applications. Listed under HTS 2903.46.10.00 as pure 1,1,1,3,3,3-hexafluoropropane. Density 1.44 g/cm³ with boiling point 15°C for efficient heat rejection.