Trifluoromethane (HFC-23)
Halogenated derivatives of hydrocarbons: > Saturated fluorinated derivatives of acyclic hydrocarbons: > Trifluoromethane (HFC-23)
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 2903.41.10.00
Trifluoromethane (HFC-23) Refrigerant Gas
Pure trifluoromethane, also known as HFC-23, is a saturated fluorinated derivative of acyclic hydrocarbons used primarily as a high-temperature refrigerant in industrial cooling systems. It falls under HTS 2903.41.10.00 due to its chemical structure as CHF3, matching the specific subheading for trifluoromethane. This colorless, non-flammable gas is supplied in high-pressure steel cylinders for specialized refrigeration applications.
HFC-23 Semiconductor Etch Gas
Ultra-high purity trifluoromethane (HFC-23) used in plasma etching processes for semiconductor manufacturing, particularly for tungsten and oxide etch applications. Classified in HTS 2903.41.10.00 as a separate chemically defined fluorinated hydrocarbon meeting Chapter 29 heading requirements.
HFC-23 Fire Suppressant Agent
Trifluoromethane (HFC-23) formulated as a clean fire extinguishing agent for total flooding systems in data centers and electronics manufacturing. Classified under HTS 2903.41.10.00 as it is a pure saturated fluorinated acyclic hydrocarbon (CHF3) per Chapter 29 definitions. This high-GWP gas leaves no residue and is effective against Class B fires.
Medical-Grade HFC-23 Calibration Gas
High-purity trifluoromethane (HFC-23) diluted in balance gas for calibrating medical gas analyzers and environmental monitoring equipment. Falls under HTS 2903.41.10.00 as a chemically defined organic compound per Chapter 29 note 1(a), with dilution allowed under note 1(d) if for safety/transport.
HFC-23 Process Byproduct Recovery Gas
Recovered and purified trifluoromethane (HFC-23) from HCFC-22 manufacturing processes, meeting commercial purity standards for refrigerant or feedstock reuse. HTS 2903.41.10.00 applies as it remains a chemically defined organic compound regardless of recovery source.